TS EAMCET · Chemistry · General Organic Chemistry
The number of no bond resonance structures possible for but-1-ene and a \(3^{\circ}\) carbocation having methyl, ethyl and isobutyl groups on cationic carbon respectively are
- A 3,7
- B 4,6
- C 2,7
- D 5, 6
Answer & Solution
Correct Answer
(C) 2,7
Step-by-step Solution
Detailed explanation
No bond resonance (hyperconjugation) depends on number of \(\alpha-\mathrm{H}\). \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}=\mathrm{CH}_2\) But-1-ene contains \(\alpha\)-H. Therefore, it gives 2 no bond resonating structures. \(3^{\circ}\) carbocation has \(7 \alpha-\mathrm{H}\).…
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