When copper is reacted with conc. sulphuric acid, which gas is evolved?

H_{2}

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O_{2}

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S O_{2}

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S O_{3}

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Solution

The correct option is C $S O_{2}$
Sulphur dioxide gas is produced by heating copper turnings with sulphuric acid.
$C u + 2 H_{2} S O_{4} \to C u S O_{4} + S O_{2} + 2 H_{2} O$

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