90.
SP
(4) Can't be predicted
The decreasing order of acidity of following
benzoic acid derivatives is :
COOH
NO
(P)
COOH
OCH,
COOH
(R)
ОСН,
COOH
(S)
n
.
Answers
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Answer:
Thus we know that Carboxylic group is main from aldehyde and ketones , than this is (p) COOHOCH, COOH
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