Assertion : Phenol is a weak acid than ethanol.
Reason : Groups with +M effect and -I effect decrease acidity at m-position .

Options

A. If both the assertion and reason are true and reason is correct explanation of the assertion .
B. If both the assertion and reason are true but reason is not a correct explanation of the assertion .
C. If the assertion is true but the reason is false.
D. If both assertion and reason are false.

Answer

D

Explanation

Phenol is a stronger acid than the ethanol . This is due to the resonance stabilisation of the phenolate ion which is produced after deprotonation.

But there is no such stabilisation in the case of ethanol .
`C_(2)H_(5)OH iff C_(2)H_(5)O^(-)+H^(+)`
The groups with +M and -I effect decrease the acidity at p-position , but at m-position the acidity is increased due to -I effect .