Hydrocarbons Question 207

Question: $ CaC_2+H_2O\to A\xrightarrow{H_2SO_4/HgSO_4}B $ . Identify A and B in the given reaction [CPMT 2000; BVP 2004]

Options:

A) $ C_2H_2 $ and $ CH_3CHO $

B) $ CH_4 $ and $ HCOOH $

C) $ C_2H_4 $ and $ CH_3COOH $

D) $ C_2H_2 $ and $ CH_3COOH $

Show Answer

Answer:

Correct Answer: A

Solution:

Wohler reaction : $ CaC_2+2H_2O\xrightarrow{{}}C_2H_2+Ca{{(OH)}_2} $

$ \underset{Acetylene}{\mathop{C_2H_2}}\underset{60^{o}C}{\mathop{\xrightarrow{dil.H_2SO_4/HgSO_4}}}\underset{Unstable}{\mathop{[CH_2=CHOH]}}\to \underset{Acetaldehyde}{\mathop{CH_3CHO}} $