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Which of the following statement is/are ...

Which of the following statement is/are correct?

A

Contributing structures contributes to the resonance hybrid in proportion of their energies.

B

Equivalent contributing structure make the resonance very important.

C

Contributing structures represent hypothetical molecules having no real existance.

D

Contributing structures are less stable than the resonance hybrid.

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The correct Answer is:
B, C, D
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AAKASH SERIES-ELECTRONIC EFFECTS AND REACTION INTERMEDIATES-ADDITIONAL PRACTICE EXERCISE (Practive Sheet (ADVANCED) Straight Objective Type Questions)
  1. Maximum dipole moment will be of :

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  2. Correct order of acidic strength is:

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

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

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  5. Among the following, the least stable resonance structure is

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  6. The correct stability order of the following species is

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  7. Hyper conjugation involves overlap of the following orbitals

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  8. The correct acidity order of the following is :

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  9. The correct stability order of the following resonance structure is : ...

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  10. Among the following compounds, the most acidic is

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  11. Which of the following statements would be false about this compound :

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  12. Which of the following statement is/are correct?

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  13. Which of the following compounds reacts with NaHCO(3)" giving "CO(2)

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  14. In which pair IInd compound is weak acids.

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  15. Among the following which statement(s) is/are true:

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  16. In which of the following pair IInd compound is weaker base.

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  17. Amongst the following statements, which is(are) correct ?

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  18. Among the following which one is having conjugated system :

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  19. Choose the correct statement :

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  20. Select correct statement

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