Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: pKa value of phenol is 10.0 while that of ethanol is 15.9. Reason R: Ethanol is stron

Question

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: pKa value of phenol is 10.0 while that of ethanol is 15.9. Reason R: Ethanol is stronger acid than phenol. In the light of the above statements, choose the correct answer from the options given below:

(A) A is true but R is false.
(B) A is false but R is true.
(C) Both A and R are true and R is the correct explanation of A.
(D) Both A and R are true but R is NOT the correct explanation of A.

Prashant Kotian · Accepted Answer

Correct answer: A. Phenol is more acidic than ethanol because conjugate base of phenoxide is more stable than ethoxide.

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