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Which of the following reactions occurs during calcination ?A. `CaCO_(3) rarr CaO + CO_(2)`B. `2Al(OH)_(3) rarr Al_(2)O_(3) + 3H_(2)O`C. `4FeS_(2) + 11 O_(2) rarr 2Fe_(2)O_(3) + 8SO_(2)`D. `Cu_(2)S + 2CuO rarr 4Cu + SO_(2)` |
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Answer» Correct Answer - A::B Reaction `(a)` and `(b)` represent calcination process, whereas `( c)` is roasting as reduction is done by heating in presence of `O_(2)` and `(d)` is auto-reduction process. |
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