Among the following which is least acidic?

Phenol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

o-cresol

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

p-nitrophenol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

p-chlorophenol

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B o-cresol
o-cresol is least acidic. $C H_{3} -$ group is electron releasing group. It intensifies negative charge on O, hence destabilize the phenoxide ion. The release of proton is not easy. The acidity of such phenols is less.
In case of p-nitrophenol, electron withdrawing nitro group disperses the negative charge and stabilizes the phenoxide ion. The release of proton is easy. The acidity of such phenols is more.

Suggest Corrections

Similar questions

Arrange the following in increasing acidic character
Phenol, m - nitrophenol, m - chlorophenol, m - cresol
I II III IV

i

i i

i i i

i v

Arrange the following in increasing acidic character
Phenol, m - nitrophenol, m - chlorophenol, m - cresol
I II III IV

Out of o-nitrophenol and o-cresol which is more acidic?

Join BYJU'S Learning Program