The stability of carbanions in the following :
(a) RC≡C⁻
(b)
(c) R₂C=CH⁻
(d) R₃C−CH₂⁻
is in the order of :

Question

The stability of carbanions in the following :
(a) RC≡C⁻
(b) 
(c) R₂C=CH⁻
(d) R₃C−CH₂⁻
is in the order of :

Accepted Answer

(a) (a) > (b) > (c) > (d). The stability of carbanions depends on the extent of s-character in the hybrid orbital holding the negative charge. Higher s-character leads to greater stability due to increased electronegativity. Thus, the order is sp (RC≡C⁻) > sp² (R₂C=CH⁻) > sp³ (R₃C−CH₂⁻).

The stability of carbanions in the following : (a) RC≡C⁻ (b) (c) R₂C=CH⁻ (d) R₃C−CH₂⁻ is in the order of :

Solution

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