Heating pyrites to remove sulphur is cal...

Heating pyrites to remove sulphur is called

A

Smelting

B

Calcination

C

Liquation

D

Roasting

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The correct Answer is:

D

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Cassiterite is an ore of:
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In the electrolytic process for the extraction of aluminium the electr...
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Heating pyrites to remove sulphur is called
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In the extraction of iron, the slag produced is :
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Nickel is purified by thermal decomposition of its :
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The most abundant element in the earth's crust (by weight) is :
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In the thermite process, the reducing agent is :
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Colemanite is :
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Which of the following process is used in the extractive metallurgy of...
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Metal always found in free state is :
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The process of removal of gangue particles from ores is known as :
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Barytes ore is :
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Which statement is correct ?
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Mond process is used in the extraction of :
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Roasting is generally carried out in case of :
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Metal occur in the native form because of their
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Which pair of elements can from alloy ?
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Specific gravity of slag is :
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Sperrylite is :
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