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JEE Main Chemistry Class 12 Alcohols, Phenols and Ethers Part 2 Questions
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Question : 21
Total: 65
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A:
pK
a
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:
[31-Jan-2024 Shift 1]
A
is true but
R
is false.
A
is false but
R
is true.
Both
A
and
R
are true and
R
is the correct explanation of
A
.
Both A and R are true but R is NOT the correct explanation of
A
.
Validate
Solution:
Phenol is more acidic than ethanol because conjugate base of phenoxide is more stable than ethoxide.
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