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Metals and Their Compounds

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Chemistry

Nature and Composition of Substances
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Radioactivity
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Chemistry in Every Day Life
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Hydrocarbons and Its Derivatives
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Metals and Their Compounds
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  1. When ore is heated generally in absence of air then process is called
    1. calcination
    2. roasting
    3. smelting
    4. none
Correct Option: A

NA


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