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Oxides and Oxoanions

When formic a...

Question

When formic acid is heated with concentrated $H_{2} S O_{4}$ , the gas evolved is :

only

C O_{2}

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only

C O

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a mixture of

C O

and

C O_{2}

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a mixture of

S O_{2}

and

C O_{2}

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Solution

The correct option is B only $C O$
When formic acid is heated with sulphuric acid, only $C O$ gas is evolved as it is not a redox reaction.

$H C O O H c o n c . H_{2} S O_{4} - ------ \to C O + H_{2} O$

Option B is correct.

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