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Q.
The stability of carbanion
follows the order
KVPYKVPY 2017
Solution:
Among the given carbanions compound $IV$ has maximum stability as it is resonance stabilised, i.e.
Among the other given carbanions, stability order of carbanion decreases as we move from $1^{\circ}$ to $3^{\circ}$ anion because of $+I$ effect of methyl groups. There is an
increased intensity of negative charge on central carbon of $3^{\circ}$ carbanion which
further makes it unstable. Thus, the correct increasing order is
follows the order
