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Question

Chemistry Question on Alcohols, Phenols And Ethers

Which one of the following compounds is most acidic ?

A

Cl—CH2—CH2—OH

B

OH-NO2 Phenol

C

-OH

D

OH-CH3

Answer

OH-NO2 Phenol

Explanation

Solution

When acidic H is eliminated, the stability of the anion directly relates to its acidic nature. Since the negative charge in phenol created once the acidic H is removed will be delocalized over the whole ring. That makes it the most stable. So, the most acidic chemical will be phenol.

Therefore, the correct option is (B):
OH-NO2 Phenol