Most stable carbanion is:

Question

Most stable carbanion is: (A)  CH3-  (B)  CH3CH2-  (C)  (D)

Tardigrade Admin · Accepted Answer

Electron donating groups (e.g., R) increases the electron density and thus make carbanion unstable. Electron withdrawing groups (e.g., - NO 2 ) take away the electrons and thus stabilises the carbanion. CH 3-and CH 3 overset-CH 2 and

are unstable due presence of electron withdrawing alkyl group

is stabilised by electron withdrawing effect of NO 2 group.

Q. Most stable carbanion is:

$C H_{3}^{-}$

$C H_{3} C H_{2}^{-}$

Q. Most stable carbanion is:

CH3−​

CH3​CH2−​

$C H_{3}^{-}$

$C H_{3} C H_{2}^{-}$