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Grade Select GradeOrganic Chemistry

Q . ARRANGE THE FOLLOWING CARBANION IN CORRECT ORDER OF STABILTY-

Question image for Q . ARRANGE THE FOLLOWING CARBANION IN CORRECT ORD
Profile image of Bharat Makkar
11 Years agoGrade Select Grade
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1 Answer

Profile image of Naveen Kumar
11 Years ago
The order is:
iii>ii>i>iV
The 3rdis stabilised by resonance.
In general allylic or benzylic cation/anions are stabilized by resonance and are more stable.
ii is also stabilized by -I effect of Br group.For comparing i and IV, we know that CH3 group is electron donor and hence de-stabilize the negative charge more.

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