Question

In the hydrogenation of the following reaction the state of carbon changes from:
$C_2{H}_2\underset{}{\overset{}{\to }}{C}_2{H}_4\underset{}{\overset{}{\to }}{C}_2{H}_6$

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

$C_2{H}_2\underset{}{\overset{}{\to }}{C}_2{H}_4\underset{}{\overset{}{\to }}{C}_2{H}_6$
In $C_2{H}_2$ there is a presence of C-C triple bond Hence C atom is sphybridised.
In $C_2{H}_4$ there is a presence of C-C double bond hence C atom is $s{p}^2$ hybridised.
In $C_2{H}_6$ there is a presence of C-C single bond hence C atom is $s{p}^3$ hybridised.