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Which of the following contains three pa...

Which of the following contains three pairs of electron?

A

Carbocation

B

Carbanion

C

Free radical

D

None of these

Text Solution

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The correct Answer is:
A
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OP TANDON-BASIC PRINCIPLES OF ORGANIC COMPOUNDS (MECHANISM OF ORGANIC REACTIONS)-OBJECTIVE QUESTIONS (Level-A)
  1. Which is the increasing order of acidic strength in the following comp...

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  2. Which of the following compounds is not a Lewis acids?

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  3. Which of the following contains three pairs of electron?

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  4. In the following compounds phenol (I), p-cresol (II), m-nitrophenol (I...

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  5. In the following compounds piperidine (I), pyridine (II), morpholine (...

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  6. The kind of delocalization involving sigma bond orbitals is called:

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  7. Hyperconjugation phenomenon is possible in:

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  8. In the following compounds, anisole (I), benzene (II) and nitrobenzene...

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  9. Among the given compounds, the most susceptible to nucleophilic attack...

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  10. The most nucleophilic nitrogen is in:

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  11. The order of reactivity of following alcohols, towards conc. HCl is :

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  12. Strongest base is :

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  13. In the reaction of phenol with CHCl(3) and aqueous NaOH at 70^(@), the...

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  14. A solution of (+)-2-chloro-2-phenyl ethane in toluene racemises slowly...

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  15. The most unlikely representation of resonance structure of p-nitrophen...

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  16. Among the following anions, the order of basicity is : overset(-)(C ...

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  17. Which of the following has the highest nucleophilicity ?

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  18. Among the following the strongest base is

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  19. The order of reactivities of the following alkyl halides for a S(N^(2)...

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  20. which of the following has the most acidic hydrogen?

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