To a piece of charcoal sulfuric acid is added. Then ______________.

there is no reaction

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water gas is formed

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S O_{2}

and

C O_{2}

are evolved

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C O

and

S O_{2}

are evolved

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Solution

The correct option is C $S O_{2}$ and $C O_{2}$ are evolved
To a piece of charcoal sulfuric acid is added. Then $C O_{2}$ and $S O_{2}$ are evolved.
$C + 2 H_{2} S O_{4} \to C O_{2} ↑ + 2 S O_{2} ↑ + 2 H_{2} O$
$H_{2} S O_{4}$ is reduced to $S O_{2}$ and $C$ is oxidised to $C O_{2}$ .

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