MINERAL AND ENERGY RESOURCES IN INDIA
INDIAN MINERALS AND INDUSTRIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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I, II and III
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II and III
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III and IV
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II, III and IV
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Detailed explanation-1: -The following statements that are true with respect to iron ore are Limestone and coal are important for smelting iron ore, More than 20% of the world iron ore deposits are in India and Odisha and Jharkhand top in the production of iron ore.
Detailed explanation-2: -Besides coal and iron ore, the other basic minerals required for the iron and steel industry are manganese, limestone and chromite. Manganese is used in the process of converting pig iron into steel; limestone or dolomite is used in smelting iron ore; and chromite is used as an alloy in steel making.
Detailed explanation-3: -Manganese is an important raw material for smelting of iron ore and also used for manufacturing ferro alloys.
Detailed explanation-4: -Metallurgical coal, a type of bituminous coal, is specially used for smelting iron in blast furnaces.
Detailed explanation-5: -The main function of limestone in the extraction of iron from haematite is as a flux. Limestone is used as a flux to remove the impurities and dirt from haematite. Limestone decomposes in a hot furnace and forms calcium oxide (CaO). Iron is extracted from its ore, haematite, in a blast furnace.