Question

(iii) Out of water, tert-butyl alcohol, propan-2-ol and ethyl alcohol, which is most acidic?​

Answer 1

Answer:

Propan - 2 - ol

Follow SN-2 mechanism

Answer 2

Out of water, tert-butyl alcohol, propan-2-ol and ethyl alcohol, water is most acidic.

• The acidity of a substance depends on the stability of the conjugate base formed.
• Higher the stability of its conjugate base (-OH in water and -OR in alcohols), greater will be the acidic nature.
• -OH ion is more stable than -OR ion due to higher inductive effect in the latter.
• Thus water is more acidic than alcohols.