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The correct stability order of the follo...

The correct stability order of the following resonance structures is
`underset((I))(H_2C = overset(+)N = overset(-)(N)) underset((II))(H_2overset(+)C-N= overset(-)(N)) underset((III))(H_2overset(-)(C)-overset(+)N -=N) underset((IV))(H_2C overset(-)C-N = overset(+)(N))`

A

`(I) gt (II) gt (IV) gt (III)`

B

`(I) gt (III) gt (II) gt (IV)`

C

`(II) gt (I) gt (III) gt (IV)`

D

`(III) gt (I) gt (IV) gt (II)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(I) gt (III) gt (II) gt (IV)`
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AAKASH SERIES-ELECTRONIC EFFECTS AND REACTION INTERMEDIATES-ADDITIONAL PRACTICE EXERCISE (LEVEL - II (PRACTICE SHEET ADVANCE)) (Straight Objective Type Questions)
  1. Among the following compounds, the strongest acid is

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  2. The most unlikely representation of resonance structure of P-nitrophen...

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  3. The compound in which C uses only sp^(3) hybrid orbitals for bond form...

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  4. Which of the following has the most acidic hydrogen?

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  5. Among the following the strongest base is

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  6. The correct order of basicities of the following compounds is: 1) <i...

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  7. Which of the following hydrocarbons has the lowest dipole moment?

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  8. Identify the correct order of boiling points of the following compound...

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  9. Which of the following acids has the smallest dissociation constant ?

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  10. When X is made to react with 2 e of NaNH(1) the product formed will be...

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  11. Which of the following represent the given mode of hybridisation sp2, ...

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  12. Maximum dipole moment will be of :

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  13. Correct order of acidic strength is:

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  14. For 1-methoxy-1,3-butadiene, which of the following resonating structu...

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  15. When benzene sulfonic acid and p-nitrophenol are treated with NaHCO(3)...

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  16. The correct stability order of the following species is

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  17. Hyper conjugation involves overlap of the following orbitals

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  18. The correct acidity order of the following is :

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  19. The correct stability order of the following resonance structures is ...

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  20. Among the following compounds, the most acidic is

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