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All questions of Minerals and Energy Resources for Class 10 Exam
Which one of the following metals can be obtained from Bauxite?- a)Aluminium
- b)Copper
- c)Iron
- d)Silver
Correct answer is option 'A'. Can you explain this answer?
Which one of the following metals can be obtained from Bauxite?
a)
Aluminium
b)
Copper
c)
Iron
d)
Silver
|
|
Ram Mohith answered |
Bauxite (Al2O3.nH2O) is an oxide ore of Aluminium...
Which one of the following states is the leading producer of Iron ore?- a)Chhattisgarh
- b)Jharkhand
- c)Karnataka
- d)Madhya Pradesh
Correct answer is option 'C'. Can you explain this answer?
Which one of the following states is the leading producer of Iron ore?
a)
Chhattisgarh
b)
Jharkhand
c)
Karnataka
d)
Madhya Pradesh
|
Krishna Iyer answered |
Karnataka is the largest producer and accounts for nearly one-fourth of the total iron ore produced in India.
Which place in India is ideal for utilising tidal energy?
- a)Gulf of Kachchh
- b)Gulf of Khambhat
- c)Both A and B
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Which place in India is ideal for utilising tidal energy?
a)
Gulf of Kachchh
b)
Gulf of Khambhat
c)
Both A and B
d)
None of these
|
Arshiya Mehta answered |
In India, the Gulf of Kachchh, provides ideal conditions for utilising tidal energy. A 900 mw tidal energy power plant is set up here by the National Hydropower Corporation.
Which out of the following is a non-conventional source of energy? - a)Atomic energy
- b)Firewood
- c)Coal
- d)Natural gas
Correct answer is option 'A'. Can you explain this answer?
Which out of the following is a non-conventional source of energy?
a)
Atomic energy
b)
Firewood
c)
Coal
d)
Natural gas
|
|
Madhu Sulaniya answered |
The sources of energy which are exhaustible and being produced continuously in nature are called nonconventional energy or renewable sources of energy. atomic energy is the only option.
Which one of the following materials is metallic?
- a)Iron
- b)Coal
- c)Petroleum
- d)Natural gas
Correct answer is option 'A'. Can you explain this answer?
Which one of the following materials is metallic?
a)
Iron
b)
Coal
c)
Petroleum
d)
Natural gas
|
|
Rajat Singh answered |
Salt is said to be non- metallic because they don't have any properties of metals except positive ions from metals . They have mostly properties of non metallic substances so this statement is legal.
The Monazite sands of Kerala are rich in: - a)coal
- b)uranium
- c)thorium
- d)platinum
Correct answer is option 'C'. Can you explain this answer?
a)
coal
b)
uranium
c)
thorium
d)
platinum
|
Varun Kapoor answered |
Due to the alpha decay of thorium and uranium, monazite contains a significant amount of helium, which can be extracted by heating. Monazite is an important ore for thorium, lanthanum, and cerium. It is often found in placer deposits. India, Madagascar, and South Africa have large deposits of monazite sands.
What is low grade brown coal called?- a)Bituminous
- b)Anthracite
- c)Lignite
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
What is low grade brown coal called?
a)
Bituminous
b)
Anthracite
c)
Lignite
d)
None of these
|
Aditya Kumar answered |
Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content.
Which out of the following is derived from the ocean waters? - a)Limestone
- b)Sandstone
- c)Cobalt
- d)Bromine
Correct answer is option 'D'. Can you explain this answer?
a)
Limestone
b)
Sandstone
c)
Cobalt
d)
Bromine
|
Rahul Desai answered |
The most recoverable form of bromine is from soluble salts found in seawater, salt lakes, inland seas and brine wells. Sea water contains bromine in about 65 parts per million (ppm) but bromine is found in much higher concentrations (2,500 to 10,000 ppm) in inland seas and brine wells.
Which mineral is used for generating atomic or nuclear power? - a)Coal
- b)Bauxite
- c)Uranium
- d)Copper
Correct answer is option 'C'. Can you explain this answer?
Which mineral is used for generating atomic or nuclear power?
a)
Coal
b)
Bauxite
c)
Uranium
d)
Copper
|
|
Alok Verma answered |
C is the correct option.Uranium and Thorium, which are available in Jharkhand and the Aravalli ranges of Rajasthan are used for generating atomic or nuclear power. The Monazite sands of Kerala is also rich in Thorium.
What are the Khetri mines famous for?- a)Coal
- b)Copper
- c)Iron
- d)Gold
Correct answer is option 'B'. Can you explain this answer?
What are the Khetri mines famous for?
a)
Coal
b)
Copper
c)
Iron
d)
Gold
|
Sneha Shah answered |
B is the correct option.Khetri is actually two towns, "Khetri Town" founded by Raja Khet Singhji Nirwan and "Khetri Nagar" which is about 10 km away from Khetri. Khetri Nagar, well known for its “Copper” Project, was built by and is under the control of Hindustan Copper Limited, a public sector undertaking under the Government of India.
What is 'Rat hole' mining? - a)Mining in places where there are lots of rats
- b)Mining done by family members in the form of a long narrow tunnel
- c)Mining that kills rats
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
What is 'Rat hole' mining?
a)
Mining in places where there are lots of rats
b)
Mining done by family members in the form of a long narrow tunnel
c)
Mining that kills rats
d)
None of these
|
|
Arun Kumar answered |
Rat-hole mining is a primitive and hazardous method of mining for coal, with tunnels that are only 3-4 feet in diameter (hence, rat-hole), leading to pits ranging from 5-100 sq. mt deep.
In which kind of rocks are the minerals deposited and accumulated in the strata's?- a)Igneous rocks
- b)Metamorphic rocks
- c)Sedimentary rocks
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
In which kind of rocks are the minerals deposited and accumulated in the strata's?
a)
Igneous rocks
b)
Metamorphic rocks
c)
Sedimentary rocks
d)
None of these
|
|
Arun Khatri answered |
C is the correct option.Minerals are found in layers or strata in sedimentary rocks. Minerals are accumulated in horizontal strata after being exposed to high heat and pressure for a long period of time. Coal, iron ore, gypsum, potash salt etc are formed in this way.
The Koderma-Gaya-Hazaribagh belt of Jharkhand is a leading producer of: - a)copper
- b)manganese
- c)iron ore
- d)mica
Correct answer is option 'D'. Can you explain this answer?
The Koderma-Gaya-Hazaribagh belt of Jharkhand is a leading producer of:
a)
copper
b)
manganese
c)
iron ore
d)
mica
|
Shounak Desai answered |
D is the correct option.Koderma district is rich in minerals. The Koderma district and the Lokai-Indarwa area covers the southern part of Great Mica-Belt of Jharkhand, Bihar, and India.
Where do minerals occur in sedimentary rocks?- a)Cracks
- b)Crevices
- c)Faults
- d)Beds or layers
Correct answer is option 'D'. Can you explain this answer?
Where do minerals occur in sedimentary rocks?
a)
Cracks
b)
Crevices
c)
Faults
d)
Beds or layers
|
Indu Gupta answered |
Where do minerals occur in sedimentary rocks?
Minerals can occur in sedimentary rocks in various locations within the rock structure. The most common location is in the beds or layers of the sedimentary rock. Here are the detailed explanations:
Beds or layers:
- Sedimentary rocks are formed by the accumulation and cementation of sediment layers over time. Minerals can become trapped within these layers during the sedimentation process.
- As sediment is deposited and compacted, minerals may settle and become cemented together, forming the solid rock structure.
- The minerals can vary in composition and size, depending on the specific type of sedimentary rock and the environment in which it was formed.
Other possible locations where minerals may occur in sedimentary rocks include:
Cracks:
- Sedimentary rocks can have cracks or fractures that form after their initial formation.
- Minerals can precipitate or fill these cracks, creating veins or mineral-filled fractures within the rock.
Crevices:
- Similar to cracks, crevices or fissures in sedimentary rocks can provide spaces for minerals to accumulate.
- These crevices may be formed by various geological processes, such as tectonic activity or weathering.
Faults:
- Faults are fractures or breaks in the Earth's crust where rocks on either side have moved relative to each other.
- Minerals can be deposited along fault lines, forming mineral veins that cut across the sedimentary rock layers.
In summary, minerals in sedimentary rocks primarily occur in the beds or layers of the rock. However, they can also be found in cracks, crevices, and faults within the rock structure. These minerals provide valuable information about the geological history and processes that have occurred in the formation of sedimentary rocks.
Minerals can occur in sedimentary rocks in various locations within the rock structure. The most common location is in the beds or layers of the sedimentary rock. Here are the detailed explanations:
Beds or layers:
- Sedimentary rocks are formed by the accumulation and cementation of sediment layers over time. Minerals can become trapped within these layers during the sedimentation process.
- As sediment is deposited and compacted, minerals may settle and become cemented together, forming the solid rock structure.
- The minerals can vary in composition and size, depending on the specific type of sedimentary rock and the environment in which it was formed.
Other possible locations where minerals may occur in sedimentary rocks include:
Cracks:
- Sedimentary rocks can have cracks or fractures that form after their initial formation.
- Minerals can precipitate or fill these cracks, creating veins or mineral-filled fractures within the rock.
Crevices:
- Similar to cracks, crevices or fissures in sedimentary rocks can provide spaces for minerals to accumulate.
- These crevices may be formed by various geological processes, such as tectonic activity or weathering.
Faults:
- Faults are fractures or breaks in the Earth's crust where rocks on either side have moved relative to each other.
- Minerals can be deposited along fault lines, forming mineral veins that cut across the sedimentary rock layers.
In summary, minerals in sedimentary rocks primarily occur in the beds or layers of the rock. However, they can also be found in cracks, crevices, and faults within the rock structure. These minerals provide valuable information about the geological history and processes that have occurred in the formation of sedimentary rocks.
In which kind of rocks are the minerals deposited and accumulated in the strata?- a)Igneous rocks
- b)Metamorphic rocks
- c)Sedimentary rocks
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
In which kind of rocks are the minerals deposited and accumulated in the strata?
a)
Igneous rocks
b)
Metamorphic rocks
c)
Sedimentary rocks
d)
None of these
|
Arka Dey answered |
Understanding Sedimentary Rocks
Sedimentary rocks are unique in their formation and composition, making them the correct answer for the question about mineral deposition and accumulation in strata.
Formation Process
- Weathering and Erosion: Sedimentary rocks originate from the weathering and erosion of pre-existing rocks. This process breaks down rocks into smaller particles.
- Transportation: These particles are transported by natural forces such as water, wind, or ice. During transportation, the minerals can undergo sorting based on size and weight.
- Deposition: Eventually, the particles settle in various environments like riverbeds, lakes, or oceans. This process is known as deposition, where sediment accumulates over time.
Stratification
- Layering: Sedimentary rocks are characterized by distinct layers or strata. Each layer represents a different time period of deposition, allowing geologists to read Earth's history.
- Fossils: These rocks often contain fossils, which are remnants of ancient life, providing insight into past ecosystems and climate conditions.
Types of Sedimentary Rocks
- Clastic Rocks: Formed from fragments of other rocks (e.g., sandstone, shale).
- Chemical Rocks: Result from the precipitation of minerals from solution (e.g., limestone).
- Organic Rocks: Form from the accumulation of plant and animal debris (e.g., coal).
Conclusion
In summary, the accumulation and deposition of minerals in layers is a fundamental characteristic of sedimentary rocks. Their formation process, stratification, and varied types make them essential for understanding Earth's geological history and the environment.
Sedimentary rocks are unique in their formation and composition, making them the correct answer for the question about mineral deposition and accumulation in strata.
Formation Process
- Weathering and Erosion: Sedimentary rocks originate from the weathering and erosion of pre-existing rocks. This process breaks down rocks into smaller particles.
- Transportation: These particles are transported by natural forces such as water, wind, or ice. During transportation, the minerals can undergo sorting based on size and weight.
- Deposition: Eventually, the particles settle in various environments like riverbeds, lakes, or oceans. This process is known as deposition, where sediment accumulates over time.
Stratification
- Layering: Sedimentary rocks are characterized by distinct layers or strata. Each layer represents a different time period of deposition, allowing geologists to read Earth's history.
- Fossils: These rocks often contain fossils, which are remnants of ancient life, providing insight into past ecosystems and climate conditions.
Types of Sedimentary Rocks
- Clastic Rocks: Formed from fragments of other rocks (e.g., sandstone, shale).
- Chemical Rocks: Result from the precipitation of minerals from solution (e.g., limestone).
- Organic Rocks: Form from the accumulation of plant and animal debris (e.g., coal).
Conclusion
In summary, the accumulation and deposition of minerals in layers is a fundamental characteristic of sedimentary rocks. Their formation process, stratification, and varied types make them essential for understanding Earth's geological history and the environment.
Minerals need to be conserved because
(i) They are renewable.
(ii) They are depleting rapidly.
(iii) They are needed for the country’s industrial development.
(iv) Their formation is very fast.- a)(i) and (ii)
- b)(ii) and (iii)
- c)(iii) and (iv)
- d)All of the above
Correct answer is option 'B'. Can you explain this answer?
Minerals need to be conserved because
(i) They are renewable.
(ii) They are depleting rapidly.
(iii) They are needed for the country’s industrial development.
(iv) Their formation is very fast.
(i) They are renewable.
(ii) They are depleting rapidly.
(iii) They are needed for the country’s industrial development.
(iv) Their formation is very fast.
a)
(i) and (ii)
b)
(ii) and (iii)
c)
(iii) and (iv)
d)
All of the above
|
Amar agrawal answered |
(iii) They are needed for the country
Minerals are essential for various industrial processes, manufacturing, construction, and energy production. They are used to make products that are essential for our daily lives, such as vehicles, electronics, and infrastructure. Without minerals, the country's economy and development would be severely affected.
Additionally, minerals are not easily renewable resources. They are formed over millions of years through geological processes, making their replenishment extremely slow compared to their rate of consumption. Once minerals are extracted and used, they cannot be easily replaced or replenished within a short period of time.
Furthermore, minerals are depleting rapidly due to the increasing global demand and inefficient extraction and consumption practices. Many mineral reserves are being depleted faster than they can be replenished, leading to potential shortages and increased prices in the future.
Conserving minerals is therefore essential to ensure their sustainable use and availability for future generations. Conservation practices can include efficient extraction techniques, recycling and reusing minerals, and promoting responsible consumption. By conserving minerals, we can minimize the environmental impact of mining activities, reduce our dependency on imports, and ensure the long-term availability of these valuable resources.
Minerals are essential for various industrial processes, manufacturing, construction, and energy production. They are used to make products that are essential for our daily lives, such as vehicles, electronics, and infrastructure. Without minerals, the country's economy and development would be severely affected.
Additionally, minerals are not easily renewable resources. They are formed over millions of years through geological processes, making their replenishment extremely slow compared to their rate of consumption. Once minerals are extracted and used, they cannot be easily replaced or replenished within a short period of time.
Furthermore, minerals are depleting rapidly due to the increasing global demand and inefficient extraction and consumption practices. Many mineral reserves are being depleted faster than they can be replenished, leading to potential shortages and increased prices in the future.
Conserving minerals is therefore essential to ensure their sustainable use and availability for future generations. Conservation practices can include efficient extraction techniques, recycling and reusing minerals, and promoting responsible consumption. By conserving minerals, we can minimize the environmental impact of mining activities, reduce our dependency on imports, and ensure the long-term availability of these valuable resources.
Which of the following minerals are obtained from veins and lodes?
(i) Zinc
(ii) Copper
(iii) Coal
(iv) Bauxite- a)Only (i) and (ii)
- b)Only (ii) and (iii)
- c)Only (iii) and (iv)
- d)All of the above
Correct answer is option 'A'. Can you explain this answer?
Which of the following minerals are obtained from veins and lodes?
(i) Zinc
(ii) Copper
(iii) Coal
(iv) Bauxite
(i) Zinc
(ii) Copper
(iii) Coal
(iv) Bauxite
a)
Only (i) and (ii)
b)
Only (ii) and (iii)
c)
Only (iii) and (iv)
d)
All of the above
|
|
Avni sharma answered |
Veins and lodes are geologic formations that contain concentrated deposits of minerals. These formations are typically found in cracks, fractures, or fissures within the Earth's crust. Let's analyze each option to determine which minerals are obtained from veins and lodes.
(i) Zinc: Zinc is obtained from veins and lodes. It is commonly found in association with other base metals such as copper, lead, and silver. Zinc ores are usually found in veins or mineralized zones that have been formed by hydrothermal activity.
(ii) Copper: Copper is also obtained from veins and lodes. It is one of the most abundant and widely distributed metals on Earth. Copper deposits are commonly found in the form of sulfide minerals, such as chalcopyrite, bornite, and chalcocite, which occur in veins and lodes.
(iii) Coal: Coal is not obtained from veins and lodes. It is a sedimentary rock formed from the remains of plants that lived and died millions of years ago. Coal deposits are found in coal seams or beds, which are formed in swampy environments and are not associated with veins or lodes.
(iv) Bauxite: Bauxite is not obtained from veins and lodes either. It is the primary ore of aluminum and is formed through weathering of aluminum-rich rocks in tropical or subtropical regions. Bauxite deposits are typically found in the form of extensive layers or bauxite hills, rather than in veins or lodes.
Therefore, only options (i) and (ii) are correct. Zinc and copper are minerals that are obtained from veins and lodes. Coal and bauxite, on the other hand, are not associated with these geological formations.
(i) Zinc: Zinc is obtained from veins and lodes. It is commonly found in association with other base metals such as copper, lead, and silver. Zinc ores are usually found in veins or mineralized zones that have been formed by hydrothermal activity.
(ii) Copper: Copper is also obtained from veins and lodes. It is one of the most abundant and widely distributed metals on Earth. Copper deposits are commonly found in the form of sulfide minerals, such as chalcopyrite, bornite, and chalcocite, which occur in veins and lodes.
(iii) Coal: Coal is not obtained from veins and lodes. It is a sedimentary rock formed from the remains of plants that lived and died millions of years ago. Coal deposits are found in coal seams or beds, which are formed in swampy environments and are not associated with veins or lodes.
(iv) Bauxite: Bauxite is not obtained from veins and lodes either. It is the primary ore of aluminum and is formed through weathering of aluminum-rich rocks in tropical or subtropical regions. Bauxite deposits are typically found in the form of extensive layers or bauxite hills, rather than in veins or lodes.
Therefore, only options (i) and (ii) are correct. Zinc and copper are minerals that are obtained from veins and lodes. Coal and bauxite, on the other hand, are not associated with these geological formations.
Nagarcoil and Jaisalmer are well-known for the effective use of ?- a)tidal energy
- b)geothermal energy
- c)wind energy
- d)biogas
Correct answer is option 'C'. Can you explain this answer?
Nagarcoil and Jaisalmer are well-known for the effective use of ?
a)
tidal energy
b)
geothermal energy
c)
wind energy
d)
biogas
|
Raghavendra Iyer answered |
C is the correct option. Nagercoil and Jaisalmer are well known for effective use of wind energy in the country.
Which of the following metals is a major constituent of non-ferrous minerals?- a)Iron
- b)Gold
- c)Manganese
- d)Chromium
Correct answer is option 'B'. Can you explain this answer?
a)
Iron
b)
Gold
c)
Manganese
d)
Chromium
|
|
Madhukar sethi answered |
Understanding Non-Ferrous Metals
Non-ferrous metals are those that do not contain significant amounts of iron. They are valued for their unique properties, such as resistance to corrosion, lightweight, and high conductivity.
Key Characteristics of Non-Ferrous Metals:
- Corrosion Resistance: Non-ferrous metals are less likely to rust or corrode compared to ferrous metals.
- Lightweight: Many non-ferrous metals, such as aluminum and titanium, are significantly lighter than iron.
- High Conductivity: Metals like copper and aluminum are excellent conductors of electricity.
Major Non-Ferrous Metals
Among the options provided, gold (option B) stands out as a major non-ferrous metal. Here's why:
- Gold's Significance: Gold is a precious metal that is highly sought after for its rarity, beauty, and value. It is widely used in jewelry, electronics, and as a form of currency.
- Non-Ferrous Classification: As a non-ferrous metal, gold does not rust and is highly resistant to tarnish and corrosion, making it ideal for various applications.
Comparison with Other Options
- Iron: This is a ferrous metal and is the primary component in steel, which is not classified as non-ferrous.
- Manganese: While it is used in steel production and alloys, it does not qualify as a major non-ferrous metal.
- Chromium: Like manganese, chromium is primarily associated with steel and ferrous metallurgy.
Conclusion
Given these distinctions, gold is rightly identified as a major constituent of non-ferrous minerals, making it the correct answer to the question.
Non-ferrous metals are those that do not contain significant amounts of iron. They are valued for their unique properties, such as resistance to corrosion, lightweight, and high conductivity.
Key Characteristics of Non-Ferrous Metals:
- Corrosion Resistance: Non-ferrous metals are less likely to rust or corrode compared to ferrous metals.
- Lightweight: Many non-ferrous metals, such as aluminum and titanium, are significantly lighter than iron.
- High Conductivity: Metals like copper and aluminum are excellent conductors of electricity.
Major Non-Ferrous Metals
Among the options provided, gold (option B) stands out as a major non-ferrous metal. Here's why:
- Gold's Significance: Gold is a precious metal that is highly sought after for its rarity, beauty, and value. It is widely used in jewelry, electronics, and as a form of currency.
- Non-Ferrous Classification: As a non-ferrous metal, gold does not rust and is highly resistant to tarnish and corrosion, making it ideal for various applications.
Comparison with Other Options
- Iron: This is a ferrous metal and is the primary component in steel, which is not classified as non-ferrous.
- Manganese: While it is used in steel production and alloys, it does not qualify as a major non-ferrous metal.
- Chromium: Like manganese, chromium is primarily associated with steel and ferrous metallurgy.
Conclusion
Given these distinctions, gold is rightly identified as a major constituent of non-ferrous minerals, making it the correct answer to the question.
Which state in India is the largest producer of bauxite? - a)Odisha
- b)Karnataka
- c)Maharashtra
- d)Kerala
Correct answer is option 'A'. Can you explain this answer?
Which state in India is the largest producer of bauxite?
a)
Odisha
b)
Karnataka
c)
Maharashtra
d)
Kerala
|
|
Harshita Jain answered |
Odisha is the largest bauxite producing state accounting for more than half of the total production of India.The main bauxite belt is in kalahandi and Koraput districts.
In igneous and metamorphic rocks, minerals may occur in the ..........
(i) Cracks
(ii) Crevices
(iii) Faults or joints
(iv) Beds- a)Only (i) and (ii)
- b)Only (i), (ii) and (iii)
- c)Only (iii) and (iv)
- d)All of the above
Correct answer is option 'B'. Can you explain this answer?
In igneous and metamorphic rocks, minerals may occur in the ..........
(i) Cracks
(ii) Crevices
(iii) Faults or joints
(iv) Beds
(i) Cracks
(ii) Crevices
(iii) Faults or joints
(iv) Beds
a)
Only (i) and (ii)
b)
Only (i), (ii) and (iii)
c)
Only (iii) and (iv)
d)
All of the above
|
Rohini Seth answered |
In igneous and metamorphic rocks, minerals may occur in various locations within the rock formation. The minerals can be found in:
Cracks:
- Cracks or fissures within the rock provide spaces for minerals to accumulate.
- These cracks can be formed due to cooling and contraction of the rock or due to tectonic forces.
Crevices:
- Crevices are narrow openings or gaps within the rock.
- These gaps can be formed by weathering and erosion processes or by the movement of rock layers.
Faults or joints:
- Faults and joints are fractures in the rock where there has been displacement.
- These fractures can create pathways for mineral-rich fluids to flow and deposit minerals.
Beds:
- Beds refer to layers or strata of rock.
- Minerals can be present within these layers, either as primary minerals that formed during the rock's formation or as secondary minerals that have been deposited later.
Based on the given options, minerals can occur in cracks and crevices (i and ii) as well as in faults or joints (iii). Therefore, the correct answer is option B: Only (i), (ii), and (iii).
Metallurgical coal used in the smelting of iron ore is- a)Anthracite
- b)Bituminous
- c)Lignite
- d)Peat
Correct answer is option 'B'. Can you explain this answer?
Metallurgical coal used in the smelting of iron ore is
a)
Anthracite
b)
Bituminous
c)
Lignite
d)
Peat
|
|
Shantanu mukherjee answered |
Understanding Metallurgical Coal
Metallurgical coal, also known as coking coal, is a specific type of coal used primarily in the production of steel through the smelting of iron ore. Among the different types of coal, bituminous coal is the most suitable for this purpose.
Types of Coal
- Anthracite: This is the highest rank of coal, known for its high carbon content and low volatile matter. While it burns cleanly and produces a high heat output, it is not suitable for coking due to its low plasticity.
- Bituminous: This type of coal is characterized by its high carbon content and ability to soften when heated. When bituminous coal is subjected to high temperatures, it undergoes a process called coking, which produces coke. Coke is essential in the iron and steel-making process as it serves as a reducing agent and fuel.
- Lignite: Known as brown coal, lignite has a lower carbon content and higher moisture content. It is not suitable for metallurgical processes due to its poor coking properties.
- Peat: This is the initial stage of coal formation and is not considered a true coal. It has high moisture content and low carbon content, making it unsuitable for metallurgical use.
Conclusion
In summary, the correct answer is option 'B', bituminous coal, because it possesses the ideal properties required for the coking process, making it indispensable in the production of steel from iron ore. Its ability to produce coke, which fuels the smelting process, sets it apart from other types of coal.
Metallurgical coal, also known as coking coal, is a specific type of coal used primarily in the production of steel through the smelting of iron ore. Among the different types of coal, bituminous coal is the most suitable for this purpose.
Types of Coal
- Anthracite: This is the highest rank of coal, known for its high carbon content and low volatile matter. While it burns cleanly and produces a high heat output, it is not suitable for coking due to its low plasticity.
- Bituminous: This type of coal is characterized by its high carbon content and ability to soften when heated. When bituminous coal is subjected to high temperatures, it undergoes a process called coking, which produces coke. Coke is essential in the iron and steel-making process as it serves as a reducing agent and fuel.
- Lignite: Known as brown coal, lignite has a lower carbon content and higher moisture content. It is not suitable for metallurgical processes due to its poor coking properties.
- Peat: This is the initial stage of coal formation and is not considered a true coal. It has high moisture content and low carbon content, making it unsuitable for metallurgical use.
Conclusion
In summary, the correct answer is option 'B', bituminous coal, because it possesses the ideal properties required for the coking process, making it indispensable in the production of steel from iron ore. Its ability to produce coke, which fuels the smelting process, sets it apart from other types of coal.
Which out of the following minerals is formed as a result of evaporation in the arid regions? - a)Gypsum
- b)Zinc
- c)Coal
- d)Copper
Correct answer is option 'A'. Can you explain this answer?
Which out of the following minerals is formed as a result of evaporation in the arid regions?
a)
Gypsum
b)
Zinc
c)
Coal
d)
Copper
|
|
Meha shukla answered |
- Gypsum is formed as a result of evaporation.
- Minerals are formed in various forms in the earth and they normally are formed in layers or beds through the sedimentary rocks.
- Minerals are formed in various forms in the earth and they normally are formed in layers or beds through the sedimentary rocks.
Which out of the following minerals is formed by the decomposition of surface rocks, and leaves a residual mass of weathered material? - a)Gold
- b)Bauxite
- c)Zinc
- d)Coal
Correct answer is option 'B'. Can you explain this answer?
Which out of the following minerals is formed by the decomposition of surface rocks, and leaves a residual mass of weathered material?
a)
Gold
b)
Bauxite
c)
Zinc
d)
Coal
|
|
Dhruv Choudhury answered |
B is the correct option.Bauxite is a mineral which is formed by decomposition of rocks, leaving a residual mass of weathered material.
Assertion: Minerals are an indispensable part of our lives.
Reason: Almost everything we use from a tiny pin to towering building all are made up of minerals.- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is not the correct explanation of A
- c)A is correct but R is wrong
- d)A is wrong but R is correct
Correct answer is option 'A'. Can you explain this answer?
Assertion: Minerals are an indispensable part of our lives.
Reason: Almost everything we use from a tiny pin to towering building all are made up of minerals.
Reason: Almost everything we use from a tiny pin to towering building all are made up of minerals.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is correct but R is wrong
d)
A is wrong but R is correct
|
Soumyaneel Mukherjee answered |
Yeah it is right.
Minerals are an indispensable part of our lives. Almost everything we use are made up of minerals. There is hardly any walk of life where we do not need minerals. Both assertion and reason statements are true and they are very closely related The .Reason is just the elaboration of assertion statement.
Hence correct answer is option A
Minerals are an indispensable part of our lives. Almost everything we use are made up of minerals. There is hardly any walk of life where we do not need minerals. Both assertion and reason statements are true and they are very closely related The .Reason is just the elaboration of assertion statement.
Hence correct answer is option A
Assertion: Natural gas is an important clean energy resource.
Reason: It emits low carbon dioxide.- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is not the correct explanation of A
- c)A is correct but R is wrong
- d)A is wrong but R is correct
Correct answer is option 'A'. Can you explain this answer?
Assertion: Natural gas is an important clean energy resource.
Reason: It emits low carbon dioxide.
Reason: It emits low carbon dioxide.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is correct but R is wrong
d)
A is wrong but R is correct
|
Varun Kumar answered |
Assertion: Natural gas is an important clean energy resource.
Reason: It emits low carbon dioxide.
Natural gas is indeed an important clean energy resource because it is a relatively low-carbon fuel compared to other fossil fuels such as coal and oil. Let's examine the assertion and reason in detail to understand why option 'A' is the correct answer.
Assertion: Natural gas is an important clean energy resource.
Natural gas is considered an important clean energy resource for several reasons:
1. Lower Carbon Emissions: Natural gas emits significantly less carbon dioxide (CO2) when burned compared to coal and oil. It contains fewer impurities and releases fewer greenhouse gases during combustion. This makes it a cleaner alternative for energy production.
2. Reduced Air Pollution: Natural gas combustion produces lower levels of air pollutants, such as sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter. These pollutants contribute to smog, acid rain, and respiratory issues. By using natural gas, we can mitigate these harmful effects on air quality.
3. Abundant Availability: Natural gas reserves are abundant in many regions, making it a readily available energy resource. This accessibility ensures a stable and reliable energy supply for various applications, such as electricity generation, heating, and cooking.
4. Versatile Applications: Natural gas can be used in various sectors, including residential, commercial, industrial, and transportation. It is used for heating homes, powering appliances, fueling vehicles, and as a raw material in the manufacturing industry.
Reason: It emits low carbon dioxide.
The reason provided in the question is correct. When natural gas is burned, it emits lower levels of carbon dioxide compared to other fossil fuels. This is due to the chemical composition of natural gas, which primarily consists of methane (CH4). Methane is a hydrocarbon that, when combusted, produces carbon dioxide and water vapor. However, methane has a lower carbon-to-hydrogen ratio compared to other hydrocarbons found in coal and oil. As a result, burning natural gas releases fewer carbon atoms per unit of energy produced, resulting in lower carbon dioxide emissions.
Conclusion:
Both the assertion and reason are true, and the reason correctly explains why natural gas is considered an important clean energy resource. Therefore, option 'A' is the correct answer.
Reason: It emits low carbon dioxide.
Natural gas is indeed an important clean energy resource because it is a relatively low-carbon fuel compared to other fossil fuels such as coal and oil. Let's examine the assertion and reason in detail to understand why option 'A' is the correct answer.
Assertion: Natural gas is an important clean energy resource.
Natural gas is considered an important clean energy resource for several reasons:
1. Lower Carbon Emissions: Natural gas emits significantly less carbon dioxide (CO2) when burned compared to coal and oil. It contains fewer impurities and releases fewer greenhouse gases during combustion. This makes it a cleaner alternative for energy production.
2. Reduced Air Pollution: Natural gas combustion produces lower levels of air pollutants, such as sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter. These pollutants contribute to smog, acid rain, and respiratory issues. By using natural gas, we can mitigate these harmful effects on air quality.
3. Abundant Availability: Natural gas reserves are abundant in many regions, making it a readily available energy resource. This accessibility ensures a stable and reliable energy supply for various applications, such as electricity generation, heating, and cooking.
4. Versatile Applications: Natural gas can be used in various sectors, including residential, commercial, industrial, and transportation. It is used for heating homes, powering appliances, fueling vehicles, and as a raw material in the manufacturing industry.
Reason: It emits low carbon dioxide.
The reason provided in the question is correct. When natural gas is burned, it emits lower levels of carbon dioxide compared to other fossil fuels. This is due to the chemical composition of natural gas, which primarily consists of methane (CH4). Methane is a hydrocarbon that, when combusted, produces carbon dioxide and water vapor. However, methane has a lower carbon-to-hydrogen ratio compared to other hydrocarbons found in coal and oil. As a result, burning natural gas releases fewer carbon atoms per unit of energy produced, resulting in lower carbon dioxide emissions.
Conclusion:
Both the assertion and reason are true, and the reason correctly explains why natural gas is considered an important clean energy resource. Therefore, option 'A' is the correct answer.
Which out of the following metallic minerals is obtained from veins and lodes?- a)Zinc
- b)Limestone
- c)Rutile
- d)Mica
Correct answer is option 'A'. Can you explain this answer?
Which out of the following metallic minerals is obtained from veins and lodes?
a)
Zinc
b)
Limestone
c)
Rutile
d)
Mica
|
Subset Academy answered |
Answer:
Veins and Lodes:
- Definition: Veins and lodes are mineral deposits that are found in fractures and fissures in rocks.
- Characteristics: These deposits are typically narrow and elongated in shape.
- Formation: Veins and lodes are formed when mineral-rich fluids flow through fractures and fill the voids with deposits over time.
Metallic Minerals Obtained from Veins and Lodes:
- Zinc: Zinc is a metallic mineral that is commonly obtained from veins and lodes. It is often found in association with lead and silver deposits.
Other Metallic Minerals:
- Limestone: Limestone is not a metallic mineral and is not obtained from veins and lodes. It is a sedimentary rock composed mainly of calcium carbonate.
- Rutile: Rutile is a titanium dioxide mineral and is not typically obtained from veins and lodes. It is commonly found in beach sands and igneous rocks.
- Mica: Mica is a non-metallic mineral and is not obtained from veins and lodes. It is a silicate mineral that is commonly used in electrical insulation and as a decorative material.
Therefore, out of the given options, the metallic mineral that is obtained from veins and lodes is Zinc (Option A).
Which one of the following places is known for lignite deposits?- a)Khetri
- b)Neyveli
- c)Bailadila
- d)Bokaro
Correct answer is option 'B'. Can you explain this answer?
Which one of the following places is known for lignite deposits?
a)
Khetri
b)
Neyveli
c)
Bailadila
d)
Bokaro
|
Saptarshi Kulkarni answered |
Lignite Deposits in Neyveli
Introduction:
Lignite is a low-grade coal which is often referred to as brown coal. It is considered to be the lowest rank of coal because it is formed under the lowest heat and pressure. Neyveli is one of the places in India where lignite deposits are found.
Location:
Neyveli is a township located in the Cuddalore district of Tamil Nadu, India. It is situated about 60 kilometers west of Pondicherry and 185 kilometers southwest of Chennai.
Lignite Deposits:
Neyveli is known for its lignite deposits, which are estimated to be around 4,000 million tonnes. The lignite deposits are found in two blocks, Neyveli and Barsingsar. The Neyveli lignite deposit covers an area of about 600 square kilometers and is believed to be the largest in India.
Mining:
Neyveli Lignite Corporation (NLC), a government-owned company, is responsible for mining the lignite deposits in Neyveli. The lignite is used as fuel to generate electricity in thermal power plants. NLC has three thermal power plants in Neyveli with a total installed capacity of 2,490 MW.
Employment:
The lignite mining industry in Neyveli provides employment to a large number of people. NLC is one of the largest employers in the region and provides direct and indirect employment to over 25,000 people.
Conclusion:
In conclusion, Neyveli is known for its lignite deposits, which are estimated to be around 4,000 million tonnes. The lignite is mined by Neyveli Lignite Corporation and is used as fuel to generate electricity in thermal power plants. The lignite mining industry provides employment to a large number of people in the region.
Introduction:
Lignite is a low-grade coal which is often referred to as brown coal. It is considered to be the lowest rank of coal because it is formed under the lowest heat and pressure. Neyveli is one of the places in India where lignite deposits are found.
Location:
Neyveli is a township located in the Cuddalore district of Tamil Nadu, India. It is situated about 60 kilometers west of Pondicherry and 185 kilometers southwest of Chennai.
Lignite Deposits:
Neyveli is known for its lignite deposits, which are estimated to be around 4,000 million tonnes. The lignite deposits are found in two blocks, Neyveli and Barsingsar. The Neyveli lignite deposit covers an area of about 600 square kilometers and is believed to be the largest in India.
Mining:
Neyveli Lignite Corporation (NLC), a government-owned company, is responsible for mining the lignite deposits in Neyveli. The lignite is used as fuel to generate electricity in thermal power plants. NLC has three thermal power plants in Neyveli with a total installed capacity of 2,490 MW.
Employment:
The lignite mining industry in Neyveli provides employment to a large number of people. NLC is one of the largest employers in the region and provides direct and indirect employment to over 25,000 people.
Conclusion:
In conclusion, Neyveli is known for its lignite deposits, which are estimated to be around 4,000 million tonnes. The lignite is mined by Neyveli Lignite Corporation and is used as fuel to generate electricity in thermal power plants. The lignite mining industry provides employment to a large number of people in the region.
Which one of the following metals is a precious one?- a)Copper
- b)Lead
- c)Iron ore
- d)Platinum
Correct answer is option 'D'. Can you explain this answer?
Which one of the following metals is a precious one?
a)
Copper
b)
Lead
c)
Iron ore
d)
Platinum
|
EduRev Class 10 answered |
Answer:
The precious metal among the given options is Platinum.
Explanation:
- Copper: Copper is a common metal that is widely used in various industries but it is not considered a precious metal.
- Lead: Lead is also a common metal but it is not classified as a precious metal.
- Iron ore: Iron ore refers to the raw material that contains iron, which is an essential metal but not considered a precious metal.
- Platinum: Platinum is a precious metal that is highly valued for its rarity, durability, and various industrial applications. It is widely used in jewelry, electrical contacts, catalytic converters, and other high-end products.
Therefore, the correct answer is option D: Platinum.
The mineral has wide applications in the electrical industry is- a)nickel
- b)manganese
- c)iron ore
- d)zinc
Correct answer is option 'C'. Can you explain this answer?
The mineral has wide applications in the electrical industry is
a)
nickel
b)
manganese
c)
iron ore
d)
zinc
|
Kds Coaching answered |
Iron ore has significant applications in the electrical industry:
- It is a crucial raw material for producing steel, which is essential in manufacturing electrical components and structures.
- Steel, made from iron ore, is used in power generators, transformers, and electric motors.
- The properties of iron ore contribute to the strength and durability of electrical infrastructure.
Which of the following states is the oldest producer of oil?- a)Arunachal Pradesh
- b)Assam
- c)Andhra Pradesh
- d)Gujarat
Correct answer is option 'B'. Can you explain this answer?
Which of the following states is the oldest producer of oil?
a)
Arunachal Pradesh
b)
Assam
c)
Andhra Pradesh
d)
Gujarat
|
|
Rohini Seth answered |
Oldest Producer of Oil among the given states:
Among the given states, the oldest producer of oil is Assam.
Explanation:
Here is the detailed explanation:
1. Arunachal Pradesh:
- Arunachal Pradesh is not known for being a significant producer of oil.
- It is a northeastern state of India and is mainly known for its natural beauty and rich biodiversity.
2. Assam:
- Assam is the oldest producer of oil among the given states.
- It is located in northeastern India and has a long history of oil production.
- The first oil well in Assam was drilled in the Digboi area in 1866, making it the oldest oilfield in the country.
- Assam has several oilfields, including Digboi, Duliajan, and Moran, which contribute significantly to India's oil production.
3. Andhra Pradesh:
- Andhra Pradesh is not known for being a major producer of oil.
- It is located in southern India and is known for its agricultural productivity and rich mineral resources.
4. Gujarat:
- Gujarat is one of the major oil-producing states in India.
- It has several oilfields, including the Ankleshwar and Ahmedabad fields.
- However, Gujarat is not the oldest producer of oil among the given states.
In conclusion, Assam is the oldest producer of oil among the given states, with a rich history of oil production dating back to 1866.
Among the given states, the oldest producer of oil is Assam.
Explanation:
Here is the detailed explanation:
1. Arunachal Pradesh:
- Arunachal Pradesh is not known for being a significant producer of oil.
- It is a northeastern state of India and is mainly known for its natural beauty and rich biodiversity.
2. Assam:
- Assam is the oldest producer of oil among the given states.
- It is located in northeastern India and has a long history of oil production.
- The first oil well in Assam was drilled in the Digboi area in 1866, making it the oldest oilfield in the country.
- Assam has several oilfields, including Digboi, Duliajan, and Moran, which contribute significantly to India's oil production.
3. Andhra Pradesh:
- Andhra Pradesh is not known for being a major producer of oil.
- It is located in southern India and is known for its agricultural productivity and rich mineral resources.
4. Gujarat:
- Gujarat is one of the major oil-producing states in India.
- It has several oilfields, including the Ankleshwar and Ahmedabad fields.
- However, Gujarat is not the oldest producer of oil among the given states.
In conclusion, Assam is the oldest producer of oil among the given states, with a rich history of oil production dating back to 1866.
Which of the following is the highest quality hard coal? - a)Lignite
- b)Bituminous
- c)Anthracite
- d)Bauxite
Correct answer is option 'C'. Can you explain this answer?
Which of the following is the highest quality hard coal?
a)
Lignite
b)
Bituminous
c)
Anthracite
d)
Bauxite
|
Crafty Classes answered |
Question: Which of the following is the highest quality hard coal?
Answer: The highest quality hard coal is Anthracite.
Here is a detailed explanation:
Types of Coal:
- Lignite: Lignite is the lowest quality and least carbon-rich form of coal. It has the lowest energy content and is often referred to as "brown coal."
- Bituminous: Bituminous coal is a medium-quality coal with higher carbon content than lignite. It is commonly used for electricity generation and is a widely available and abundant coal type.
- Anthracite: Anthracite is the highest quality hard coal. It has a high carbon content, low moisture content, and high energy density. It is a rare and valuable coal type known for its high heating value and clean-burning properties.
- Bauxite: Bauxite is not a type of coal. It is a sedimentary rock that is the primary source of aluminum.
Comparison of Coal Types:
- Lignite is the lowest quality coal with the lowest energy content.
- Bituminous coal is of medium quality, widely used for electricity generation.
- Anthracite is the highest quality hard coal, known for its high carbon content and clean-burning properties.
- Bauxite is not a type of coal but a rock used for aluminum production.
Conclusion:
The highest quality hard coal among the given options is Anthracite. It is a rare and valuable coal type with high carbon content and clean-burning properties.
Where do minerals occur in igneous rocks?- a)Cracks
- b)Beds
- c)Layers
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
Where do minerals occur in igneous rocks?
a)
Cracks
b)
Beds
c)
Layers
d)
None of the above
|
|
Subset Academy answered |
Where do minerals occur in igneous rocks?
In igneous rocks, minerals occur in cracks. Here is a detailed explanation of where minerals occur in igneous rocks:
1. Introduction to igneous rocks:
- Igneous rocks are formed from the solidification of molten rock material.
- The molten rock material, known as magma, cools and solidifies to form igneous rocks.
2. Minerals in igneous rocks:
- Minerals are naturally occurring, inorganic solid substances with a specific chemical composition and crystal structure.
- Igneous rocks are composed of minerals that crystallize from the magma as it cools and solidifies.
3. Cooling and mineral formation:
- As magma cools, it undergoes a process called crystallization, where minerals start to form.
- The minerals in igneous rocks are formed through the crystallization of the various elements present in the magma.
- The specific minerals that form depend on the chemical composition of the magma.
4. Cracks and mineral occurrence:
- During the cooling and solidification of magma, cracks or fractures can develop in the rock.
- These cracks provide pathways for mineral-rich fluids to flow through the rock.
- As the fluids circulate through the cracks, they can deposit minerals, forming veins or mineral-filled fractures within the igneous rock.
5. Benefits of mineral occurrence in cracks:
- The presence of minerals in cracks can contribute to the economic value of igneous rocks.
- Some minerals, such as gold, silver, and copper, are often found in veins or mineral-filled fractures within igneous rocks.
- These mineral occurrences can be important for mining and extracting valuable resources.
In conclusion, minerals in igneous rocks occur in cracks or fractures formed during the cooling and solidification of magma. These mineral occurrences can have economic significance and are often targeted for mining purposes.
In igneous rocks, minerals occur in cracks. Here is a detailed explanation of where minerals occur in igneous rocks:
1. Introduction to igneous rocks:
- Igneous rocks are formed from the solidification of molten rock material.
- The molten rock material, known as magma, cools and solidifies to form igneous rocks.
2. Minerals in igneous rocks:
- Minerals are naturally occurring, inorganic solid substances with a specific chemical composition and crystal structure.
- Igneous rocks are composed of minerals that crystallize from the magma as it cools and solidifies.
3. Cooling and mineral formation:
- As magma cools, it undergoes a process called crystallization, where minerals start to form.
- The minerals in igneous rocks are formed through the crystallization of the various elements present in the magma.
- The specific minerals that form depend on the chemical composition of the magma.
4. Cracks and mineral occurrence:
- During the cooling and solidification of magma, cracks or fractures can develop in the rock.
- These cracks provide pathways for mineral-rich fluids to flow through the rock.
- As the fluids circulate through the cracks, they can deposit minerals, forming veins or mineral-filled fractures within the igneous rock.
5. Benefits of mineral occurrence in cracks:
- The presence of minerals in cracks can contribute to the economic value of igneous rocks.
- Some minerals, such as gold, silver, and copper, are often found in veins or mineral-filled fractures within igneous rocks.
- These mineral occurrences can be important for mining and extracting valuable resources.
In conclusion, minerals in igneous rocks occur in cracks or fractures formed during the cooling and solidification of magma. These mineral occurrences can have economic significance and are often targeted for mining purposes.
Low-grade brown coal is called- a)Magnetite
- b)Bauxite
- c)Lignite
- d)Limonite
Correct answer is option 'C'. Can you explain this answer?
Low-grade brown coal is called
a)
Magnetite
b)
Bauxite
c)
Lignite
d)
Limonite
|
Kamna Science Academy answered |
Low-grade brown coal is called
Low-grade brown coal is called lignite.
Explanation:
Low-grade brown coal, also known as lignite, is a type of coal that is characterized by its low carbon content and high moisture content. It is considered the lowest grade of coal and is typically brown or black in color.
Here are some key points about lignite:
- Lignite is formed from peat, which is partially decayed plant material.
- It has a relatively low energy content compared to other types of coal.
- Lignite is mainly used for electricity generation and as a fuel for industrial processes.
- It is more abundant than other types of coal and is found in large deposits around the world.
- Lignite is often used in power plants that have specialized equipment to handle its high moisture content.
- It is less efficient and produces more emissions when burned compared to higher-grade coals.
- Lignite is typically mined using open-pit mining methods.
In summary, low-grade brown coal is known as lignite, and it is characterized by its low carbon content and high moisture content.
Chapter doubts & questions for Minerals and Energy Resources - Social Studies (SST) Class 10 2025 is part of Class 10 exam preparation. The chapters have been prepared according to the Class 10 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 10 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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