When formic acid or oxalic acid is treated with conc. `H_(2)SO_(4)` , the gas evolved is
When formic acid or oxalic acid is treated with conc. `H_(2)SO_(4)` , the gas evolved is
A. `H_(2)S`
B. CO
C. `SO_(2)`
D. `CO_(2)`
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Correct Answer - B
`{:(CO OH),("|"),(CO OH):} overset(Conc. H_(2)SO_(4))toCO+CO_(2)+H_(2)O`
`HCO OH overset(Conc. H_(2)SO_(4))toCO +H_(2)`
Conc. `H_(2)SO_(4)` acts as a dehydrating agent eliminates water.
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