Which of the following statements is not correct?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Phenol is stronger acid than an alcohol

Decreasing order of acidic character of chlorophenols is $p - {ClC}_{6} H_{4} OH > o - {ClC}_{6} H_{4} OH > m - {ClC}_{6} H_{4} OH$

Sulphonation of phenol is a reversible reaction

p-Hydroxyacetophenone can be converted to o-hydroxyacetophenone on increasing the temperature from 25°C to 165°C.

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Statements B is not correct. Decreasing order of acidic character of chlorophenols is $p - {ClC}_{6} H_{4} OH > o - {ClC}_{6} H_{4} OH > m - {ClC}_{6} H_{4} OH$ .

Although Cl is electron-donating by resonance, its electron-withdrawing inductive effect that decreases with increasing separation of Cl and OH, predominates, making all the chlorophenols more acidic than phenol. The correct sequence of acidic character is

o-chlorophenol > m-chlorophenol > p-chlorophenol

Hence, option B is correct.

Watch 3-min video & get full concept clarity