Question

The treatment of $C{H}_3$ $MgX$ with $C{H}_3$ $C\equiv C-H$ produces:

• A. $C{H}_3-C=C-C{H}_3$
• B. $C{H}_4$
• C. $C{H}_3$ $-CH=C{H}_2$
• D. $C{H}_3$ $C\equiv C-C{H}_3$

Answer 1

Answer: (B)

$C{H}_4$

The Grignard reagent reacts with compounds having active or acidic hydrogen atom to give alkane.

When $C{H}_{3}MgX$ reacts with $C{H}_3$ $C\equiv C-H$ produce methane gas. The reaction is:

$C{H}_{3}MgX$ + $C{H}_3$ $C\equiv C-H$ $\to C{H}_4$ + $C{H}_3-C\equiv MgX$

So, the correct option is $B$