Question

Arrange the following carbanions in increasing order of their stability.

Answer 1

all the above carbanion are primary carbanion . carbenion $\left(III\right)$ is more stable because $-I$ effect of flurine atom attached with chain which stabilised the negative charge on the carbon atom. Carboanion $\left(II\right)$ is more stable because it is primary carbanion . Compound $\left(I\right)$ is stablise by resonance effect hence ,

the order $\to iii>ii>i$