The major products obtained in the reaction of oxalic acid with $c o n c . H_{2} S O_{4}$ upon heating are ____________.

C O, C O_{2}, H_{2} O

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C O, S O_{2}, H_{2} O

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H_{2} S, C O, H_{2} O

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H C O O H, H_{2} S, C O

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Solution

The correct option is D $C O, C O_{2}, H_{2} O$
Conc. sulphuric acid is a strong dehydrating agent. Upon reaction with oxalic acid at elevated temperature, it removes water, carbon monoxide and carbon dioxide as
$H O O C - C O O H .2 H_{2} O h y d r a t e d o x a l i c a c i d + H_{2} S O_{4} h o t, c o n c . \to 3 H_{2} O w a t e r + C O c a r b o n m o n o x i d e + C O_{2} c a r b o n d i o x i d e$
Therefore, option A is correct.

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Similar questions

H_{2} S O_{4}

In which of the following reaction $F e_{2} O_{3}$ /Cr catalyst is used?

{CO}_{2} (g) + H_{2} (g) \to CO (g) + H_{2} O (g)

20

1, 1, 1

C O, H_{2} O, C O_{2}

C O + H_{2} O ⇌ C O_{2} + H_{2}

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