Question

The stability of carbonions in the following
a) $R-C\equiv \stackrel{\ominus }{C}$
b) image
c)$R_{2}C=\stackrel{\ominus }{C}H$
d) $R_{2}C-\stackrel{\ominus }{C}{H}_2$

• A. $a>c>b>d$
• B. $a>b>c>d$
• C. $b>c>d>a$
• D. $d>b>c>a$

Answer 1

The correct option is B $a>b>c>d$

Higher is the electronegativity of atom higher will be stability of carbanion on it$.$

Higher is the $s-$character higher will be the negativity of atom$.$

Hence$,$ option $\left(B\right)$ is correct$.$