Which of the following statements is INCORRECT about hyperconjugation? - Chemistry

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MCQ

Which of the following statements is INCORRECT about hyperconjugation?

Options

  • Hyperconjugation is also known as no bond resonance.

  • Hyperconjugation is a permanent effect which stabilizes cation.

  • Greater the number of alkyl groups attached to the positively charged carbon atom, greater is the effect of hyperconjugation.

  • Hyperconjugation arises due to the partial overlap of sp2−s with the empty p-orbital of adjacent positively charged carbon atom.

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Solution

Hyperconjugation arises due to the partial overlap of sp2−s with the empty p-orbital of adjacent positively charged carbon atom.

Explanation:

The partial overlap of sp3−s (α C-H bond) with the vacant p-orbital of a nearby positively charged carbon atom causes hyperconjugation.

Concept: Theoretical Basis of Organic Reactions
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