Test: Minerals & Energy Resources - 2 - Class 10 MCQ

Answer:
Bauxite:
Bauxite is a sedimentary rock that is the primary ore of aluminum.
It is a mixture of minerals, mainly gibbsite (Al(OH)3), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH)), along with impurities such as iron oxides and clay minerals.
Metal obtained from Bauxite:
Aluminium:
Aluminium is the metal that can be obtained from Bauxite.
It is extracted from bauxite by a process known as the Bayer process.
After extraction, aluminum is widely used in various industries due to its low density, resistance to corrosion, and excellent conductivity.

Other metals:
Copper:
Copper cannot be obtained from Bauxite. It is typically obtained from ores such as chalcopyrite, bornite, and malachite.
Iron:
Iron cannot be obtained from Bauxite. It is typically obtained from iron ores such as hematite and magnetite.
Silver:
Silver cannot be obtained from Bauxite. It is typically obtained from various sources such as silver ores, copper-nickel ores, lead-zinc ores, and gold ores.

Therefore, the correct answer is Aluminium (Option A).

 

Explanation:
The correct answer is option B: (ii) and (iii).
Reasoning:
- Minerals are not renewable resources. They are formed over millions of years through geological processes and cannot be replenished within a human lifespan.
- Minerals are depleting rapidly due to excessive extraction and consumption. This is mainly because the rate of extraction is much higher than the rate of formation.
- Minerals are essential for a country's industrial development. They are used in various industries such as manufacturing, construction, energy production, and technology.
- The formation of minerals is not fast. It takes geological processes such as erosion, weathering, and deposition over long periods of time for minerals to form.
Therefore, the correct answer is option B: (ii) and (iii) - Minerals need to be conserved because they are depleting rapidly and they are needed for the country's industrial development.

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.
The given assertion and reason can be evaluated as follows:
1. Assertion: Minerals are an indispensable part of our lives.
- This statement is true. Minerals play a crucial role in various aspects of our lives. They are essential for the proper functioning of our bodies, as they are required for the formation of bones, teeth, and other tissues. Minerals are also used in industries for manufacturing various products.
2. Reason: Almost everything we use from a tiny pin to towering building all are made up of minerals.
- This statement is also true. Minerals are utilized in the production of a wide range of products. For example, metals like iron, aluminum, and copper, which are derived from minerals, are used in the construction of buildings, infrastructure, and other structures. Additionally, minerals are used in the manufacturing of electronics, vehicles, and even everyday items like utensils and jewelry.
Based on the evaluation of the assertion and reason, we can conclude that both statements are true and the reason is the correct explanation of the assertion. Therefore, the correct answer is option A: Both A and R are true and R is the correct explanation of A.

Answer:
Place known for lignite deposits:
- Neyveli
Explanation:
- Lignite is a type of coal that is considered lower in rank compared to bituminous coal or anthracite.
- Neyveli, located in the state of Tamil Nadu in India, is known for its lignite deposits.
- The Neyveli Lignite Corporation (NLC) operates the lignite mines in Neyveli and is one of the largest lignite mining companies in the country.
- Neyveli has significant lignite reserves, which are used for power generation in thermal power plants operated by NLC.
- The lignite deposits in Neyveli have played a crucial role in the development of the region's energy sector and have contributed to the overall energy production in India.

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 Hazira - Vijaipur - Jagdishpur pipeline is a natural gas pipeline in India. It spans across multiple states, but it does not pass through Maharashtra. Here is a detailed explanation:
Background:
The Hazira - Vijaipur - Jagdishpur (HVJ) pipeline is one of the longest cross-country natural gas pipelines in India. It is owned and operated by GAIL (Gas Authority of India Limited). The pipeline was built to transport natural gas from the western coast of India to the northern part of the country.
States through which the pipeline passes:
The HVJ pipeline passes through the following states:
- Gujarat: The pipeline starts at Hazira in Gujarat.
- Madhya Pradesh: It passes through several districts of Madhya Pradesh, including Barwani, Khargone, Khandwa, Harda, Hoshangabad, and Betul.
- Uttar Pradesh: The pipeline continues through Uttar Pradesh, covering districts like Jhansi, Lalitpur, Jalaun, Hamirpur, Banda, Fatehpur, and Pratapgarh.

States not included:
The HVJ pipeline does not pass through Maharashtra. This means that it does not cover any districts or locations in Maharashtra.
Conclusion:
In conclusion, the Hazira - Vijaipur - Jagdishpur pipeline passes through Gujarat, Madhya Pradesh, and Uttar Pradesh, but it does not pass through Maharashtra.

Gold is a major non-ferrous metal, which means it does not contain iron. Non-ferrous metals are used in various applications where the properties of iron are not desired, such as in jewelry and electronics.

Natural gas is primarily used for electricity generation in India. It is a cleaner alternative to coal and helps in reducing greenhouse gas emissions. It is also used in industrial processes and as a fuel for vehicles.

Wind power is a non-conventional energy source that uses wind turbines to generate electricity. It is a renewable and sustainable method of energy production, contributing to reducing reliance on fossil fuels.

Placer deposits are typically found in riverbeds and formed by the mechanical action of flowing water which separates and concentrates heavy minerals. These deposits often contain gold, platinum, and gemstones.