Q. Which of the following compounds is most acidic?

A) $CH_{4}$
B) $C_{2}H_{6}$
C) $CH \equiv CH$
D) $C_{2}H_{5}OH$
Explanation

(d)
Proton donors are acids. Among given choices $C_{2}H_{5}OH$ can give proton $\left( H^{+} \right)$ most easily.
$\therefore C_{2}H_{5}OH$ is most acidic among $C_{2}H_{6},CH_{4},$
$CH \equiv CH$ and $C_{2}H_{5}OH$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.