Zinc blende on roasting in air gives:

Z n C O_{3}

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Z n O

and

S O_{2}

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ZnS and

Z n S O_{4}

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Z n O

and

C O_{2}

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Solution

The correct option is B $Z n O$ and $S O_{2}$
Zinc blende is an ore of zinc, with the major component as $Z n S$ . This is the reaction that happens:
$2 Z n S + 3 O_{2} ⟶ 2 Z n O + 3 S O_{2}$

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