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Find the number of following reactions which are involved in roasting process : (i) `S_(8) + 8 O_(2) overset (Delta)rarr 8SO_(2) uarr` (ii) `P_(4) + 5O_(2) overset (Delta) rarr P_(4) O_(10) uarr` (iii) `4 As + 3O_(2) overset (Delta) rarr 2 As_(2) O_(3) uarr` (iv) `2ZnS + 3 O overset (Delta) rarr 2 ZnO + 2SO_(2) uarr` (v) `ZnCO_(3) overset (Delta) rarr 4 ZnO + CO_(2) uarr`. |
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Answer» Correct Answer - `(4)` Roasting is heating the ore in presence of `O_(2)`. Reactions (i),(ii),(iii) and (iv) can be termed roasting. |
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