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Ionic species are stabilised by the disp...

Ionic species are stabilised by the dispersal of charge. Which of the following carboxylate ion is the most stable?

A

`CH_3 - overset(O)overset(||)C - O^(-)`

B

`Cl - CH_2 - overset(O)overset(||)C - O^(-)`

C

`F - CH_2 - overset(O)overset(||)C - O^(-)`

D

Text Solution

Verified by Experts

The correct Answer is:
D
Factors which decrease the-ve charge, increase the stability of anion. The presence of two F atoms in option (D) disperses the-ve charge of oxygen atom. This is because F atom has strong-Ieffect. Thus most stable anion is (D)
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