Given below are two statements: Statement I: On the basis of inductive effect, the order of stability of alkyl carbanions is CH ₃^-> CH₃ -CH₂^- > ( CH₃ )₂ CH ^- > ( CH₃ )₃ C ^- . Statement II: Allyl and benzyl carbanions are more stabilised by inductive effect and not by resonance effect. In the light of the above statements, choose the correct answer from the options given below

Step-by-step solution

Statement I is correct because alkyl groups exert a +I effect (electron-donating inductive effect). This increases the electron density on the negatively charged carbon atom, destabilizing the carbanion. Thus, as the number of alkyl groups increases, the stability of the carbanion decreases. The order of stability is CH ₃^- > CH ₃ CH ₂^- > ( CH ₃)₂ CH ^- > ( CH ₃)₃ C ^- . Statement II is incorrect because allyl and benzyl carbanions are highly stabilized by the resonance effect, where the negative charge is delocal