Question

Choose the incorrect statement.

• A. Relative ease of dehydration of alcohols on heating with a protic acid is Primary $>$ Secondary $>$ Tertiary
• B. Reaction of alcohols with anhydrides is carried out in the presence of small amounts of Conc. $\text{H}_2\text{SO}_4$ to remove the water formed
• C. p-Nitrophenol is more acidic than p-Cresol
• D. Cyclic $\text{C}_4\text{H}_7\text{OH}$ exists as four structural isomers

Hint:

Dehydration rates of alcohols always mirror carbocation stability profiles. Since a $3^\circ$ carbocation is far more stable than a $1^\circ$ intermediate, the ease of dehydration must be Tertiary $>$ Secondary $>$ Primary. Statement (A) states the exact reverse, revealing itself as the incorrect option.

Answer 1

The Correct Option is A