Aldehydes Ketones Question 69

Question: $ C_2H_2\xrightarrow[Dil.H_2SO_4]{HgSO_4}P\xrightarrow{(0)} $ $ Q\xrightarrow[Pyridine]{SOCl_2}R\xrightarrow{{{(C_2H_5)}_2}Cd}S $ The end product in the above sequence of reactions is

Options:

A) Ethylethanal

B) 2-Butanone

C) Propanal

D) Propanone

Show Answer

Answer:

Correct Answer: B

Solution:

[b] $ HC\equiv CH\xrightarrow{HgSO_4/{H^{+}}}\underset{(P)}{\mathop{CH_3CHO}}\xrightarrow{[o]} $