Easy
The $-NO_2$ group in the following conjugated system shows:
- A$-R$ effect
- B$-I$ effect
- C$+R$ effect
- D$+I$ effect
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Explain the types of inductive effect.
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View SolutionThe delocalization of $\sigma$ electrons of $C-H$ bond of an alkyl group with the $\pi$ electrons of benzene is observed in
Identify the species from the following that exhibits no-bond resonance (hyperconjugation).
Given below are two statements:
Statement $I$: On the basis of inductive effect, the order of stability of alkyl carbanions is $CH_3^- > CH_3CH_2^- > (CH_3)_2CH^- > (CH_3)_3C^-$.
Statement $II$: Allyl and benzyl carbanions are more stabilised by inductive effect and not by resonance effect.
Statement $I$: On the basis of inductive effect, the order of stability of alkyl carbanions is $CH_3^- > CH_3CH_2^- > (CH_3)_2CH^- > (CH_3)_3C^-$.
Statement $II$: Allyl and benzyl carbanions are more stabilised by inductive effect and not by resonance effect.
Which of the following is correct with respect to $-I$ effect of the substituents? ($R =$ alkyl)
MediumNEET 2018
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