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NEET levelSingle correct optionDifficulty 1 of 3mt120

Roasting zinc blende in excess air gives

A $ZnO$ and $SO X_{2}$
B $Zn$ and $SO X_{2}$
C $ZnO$ and elemental sulphur
D $ZnCO X_{3}$ and $SO X_{2}$

Answer: A

Roasting is heating in excess air below the melting point of the ore:

2 ZnS + 3 O X_{2} 2 ZnO + 2 SO X_{2}

. The oxide is later reduced with coke.

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