TS EAMCET · Chemistry · General Organic Chemistry
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 \(7 \alpha-\mathrm{H}\).
Thus, it forms 7 no bond resonating structures.
Hence, option (3) is correct.
- A \(A < D < B < C\)
- B \(D < A < B < C\)
- C \(B < C < D < A\)
- D \(A < D < B < C\)
Answer & Solution
Correct Answer
(D) \(A < D < B < C\)
Step-by-step Solution
Detailed explanation
Stability of benzene and polycyclic aromatic compounds is determined by resonance energy per ring. Benzene has resonance energy of \(36 \mathrm{kcal} / \mathrm{mol}\) per ring, naphthalene has \(30.3 \mathrm{kcal} / \mathrm{mol}\), phenanthrene has…
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