Question

c) Arrange the followings in increasing order of acid
CF3COOH, CHCI2COOH, CCI3 COOH, NO2CH2 COOH

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Answer 1

answer fro i st bit

is second > third > first

in first CN is e- withdrawing group so it makes O to have decreased - ve charge since N is more EN than O most of the e- from carbon will be attracted by CN grp

in second methyl groups are e- releasing therefore oxygen gets stabilised by higher - ve charge

in third even though O is more EN than Cl , Cl tries it's best to pull the e- from carbons in between them and hence O has few - ve charge fro it

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