Equilibrium Question 899
Question: Choose the correct order of strength of following acids.
(i) $ CH_3CH_2CH_2COOH $
(ii) $ ~CH_3CH_2CH(Br)COOH $
(iii) $ CH_3CH(Br)CH_2COOH $
(IV) $ {{(CH_3)}_2}CHCOOH $
Options:
A) I < II < III < IV
B) IV < I < III < II
C) IV < III < I < II
D) II < I < III < IV
Show Answer
Answer:
Correct Answer: B
Solution:
AlkyI group with + 1 effect decreases the acidic strength whereas with - 1 effect increases the acidic strength - 1 effect decreases with distance.
$ \therefore $ Increasing order of acidic strength is $ {{(CH_3)}_2}CHCOOH<CH_3CH_2CH_2COOH $ $ <CH_3CH(Br)CH_2COOH< $ $ CH_3CH_2CH(Br)COOH $
