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Which of the following molecules has lon...

Which of the following molecules has longest `C=C` strenght?

A

`CH_(2)=C-CH_(2)`

B

`CH_(3)-CH=CH_(2)`

C

`CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH=CH_(2)`

D

`CH_(3)-underset(CH_(3))underset(|)C=CH_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D

Compound contains `6alpha-H,` so more hyperconjugation occurs.
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HIMANSHU PANDEY-GENERAL ORGANIC CHEMISTRY-Level 2 (Q.1 To Q.25)
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  2. In which of the following pairs of resonance contributors is the sturc...

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  3. Examine the following resonating structures of formic acid and arrange...

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  4. Which of the following compounds will not show resonance?

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  5. Which of the following compounds will exhibit d-orbital resonance?

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  6. Which of the following represents resonating structure of

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  7. Which of the following is not a permissible resonating form?

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  8. Less contributing structure of nitroethene is :

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  9. Which will be the least stable resonating structure?

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  10. Which will be the least stable resonating structure?

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  11. Which of the following pairs of structures is not a pair of resonating...

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  12. Which of the following pairs of strutures does not represent resonatin...

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  13. The most stable resonating structure of p-nitrosonitrobenzene is :

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  14. Which of the following molecules has longest C=C strenght?

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  15. The decreasing order of bond length of C=C in the following compounds ...

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  16. In which of the following molecules all the effects namely inductive, ...

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  17. There are three canonical structures of naphthalene. Examine them and ...

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  18. Among these compounds the correct order of C-N bond length is :

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  19. C(1)-C(2) bond is shortest in :

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  20. Among the following three canonical sturetures what would be their rel...

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