Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The acid strength of active methylene group in
(i) 
(ii) 
(iii) 
decreases as
A
i 
iii 
ii
iii ii
B
i 
ii 
iii
ii iii C
ii 
i 
iii
i iii
D
iii 
i 
ii
i ii
Text Solution
Verified by ExpertsThe correct answer is:
C
: In active methylene compound (ii), methylene 
group exists in between two strong EWGs i.e. ( 
), which increases the acidity. Esters (iii) are less acidic than ketones (i) because the enolate ion produced from an ester is less stable than that produced from a ketone.
Hence,
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