Question

Which one the following does not have $s{p}^2$ hybridized carbon?

• A. Acetone
• B. Acetamide
• C. Acetonitrile
• D. Acetic acid

Answer 1

The correct option is C Acetonitrile

Structural formula of acetone is $C{H}_3-CO-C{H}_3$ It is having only $s{p}^3$ and $s{p}^2$ hybridized carbon atom.
Structural formula of acetone is $C{H}_3-CO-N{H}_2$ It is having only $s{p}^3$ and $s{p}^2$ hybridized carbon atom.
Structural formula of acetone is $C{H}_3-COOH$ It is having only $s{p}^3$ and $s{p}^2$ hybridized carbon atom.
Structural formula of acetonitrile is $C{H}_3-C\equiv N$. It is having only $s{p}^3$ and $sp$ hybridized carbon atom. thus option a is correct.