question_answer

When ethyne is passed through dilute \[{{H}_{2}}S{{O}_{4}}\] containing \[{{H}_{g}}S{{O}_{4}},\] it forms:

A)  ethanol         

B)         ethanoic acid

C)         ethanal               

D)  ethene

Correct Answer: C

Solution :

Ethyne on hydrolysis, catalysed by\[HgS{{O}_{4}},\] gives acetaldehyde (ethanol).