Test: Mineral And Power Resources - 1 - UPSC MCQ

A mineral is a homogeneous naturally occurring substance with a definite but not necessarily fixed chemical composition. Most minerals are solids with an ordered atomic arrangement, and most are inorganic in the chemical sense of that word.

 

India is blessed with plenty of metallic and non-metallic mineral resources. However, they are unevenly distributed due to differences or variations in geological structures, processes and time involved in the formation of minerals. So the minerals are evenly distributed over space.

Yes the correct answer is B as all the other properties like colour, hardness,density( weight) are the physical properties they define the physical appearance of the minerals....But presence of sulphides is a chemical property of the minerals as it defines it's chemical composition....

Ore is a special type of rock that contains a large enough amount of a particular mineral (usually a metal) to make it economically practical to extract that mineral from the surrounding rock. Not all minerals are found in a large enough amount in one location to make it worth it to remove the ore from the rock through a process known as mining. Ores can be mined in a number of ways, including strip mining as shown here at this uranium mine.

High-grade ore contains a large concentration of the desired mineral. Low-grade ore has a smaller concentration.

The largest concentration of monazite sand is on the Kerala coast.

Answer:
Metal can be obtained in raw form from metallic minerals. Here is a detailed explanation:
Metallic Minerals:
- Metallic minerals are minerals that contain metals in their raw form.
- These minerals are typically found in the earth's crust and can be extracted through various mining methods.
- Examples of metallic minerals include iron ore, copper, gold, silver, and aluminum.
- These minerals are valuable resources as they are used in various industrial processes and for the production of metals and alloys.
Quarried Minerals:
- Quarried minerals refer to minerals or rocks that are extracted from quarries, which are open-pit mines.
- While quarries can produce minerals such as limestone, granite, and marble, these minerals are not in their raw form and do not contain metals.
Drilled Minerals:
- Drilled minerals refer to minerals that are extracted through drilling methods, such as oil drilling or mining of mineral deposits.
- While drilling can be used to extract minerals, the minerals obtained through drilling are not necessarily in their raw form and may not contain metals.
Non-metallic Minerals:
- Non-metallic minerals are minerals that do not contain metals in their raw form.
- Examples of non-metallic minerals include limestone, gypsum, clay, and quartz.
- These minerals are used in various industries such as construction, ceramics, and glass manufacturing.
Therefore, the correct answer is A: Metallic minerals. These minerals contain metals in their raw form and can be extracted for further processing and use.

Metals : Metals are the elements which can easily loose electrons and forms cations.

Properties of metals :

• They are lustrous (shine).
• They are malleable and ductile (flexible).
• They conduct heat and electricity.
• The metallic oxides are basic in nature.
• They form cations in an aqueous solution.

Non-metals : Non-metals are the elements which can easily gain electrons and form an anion.

Properties of non-metals :

• They are non-lustrous.
• They are brittle and hard in nature.
• They do not conduct heat and electricity.
• The non-metallic oxides are acidic in nature.
• They form anions in an aqueous solution.

Hence, from the given options the correct option for metal is, Malleable, shiny, and able to conduct heat or electricity.

Limestone is not a metallic mineral.