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Which one of the following carbanions is...

Which one of the following carbanions is the least stable

A

`CH_(3)CH_(2)^(-)`

B

`HCequivC^(-)`

C

`(C_(6)H_(5))_(3)C^(-)`

D

`CH_(3)^(-)`

Text Solution

Verified by Experts

The correct Answer is:
D
The stabilbity of carbanions decreases in the order `(C_(6)H_(5))_(3)overset(-)CgtCHequivoverset(-)CgtCH_(3)^(-)gtCH_(3)CH_(2)^(-)gt(CH_(3))overset(-)C`
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DINESH PUBLICATION-BASIC PRINCIPLES OF ORGANIC CHEMISTRY-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
  1. CH(3)CH(2)Cl undergoes homolytic fission to produce

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  2. The number of sigma bonds, pi bonds and lone pair

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  3. Which one of the following carbanions is the least stable

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  4. An alkyne combines with a conjugated diene to give an unconjugated cyc...

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  5. The enolic form of butanone contains

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  6. Which among the following statements are true with respect to electron...

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  7. Which of the following does not exhibit tautomerism?

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  8. Give the IUPAC name of the compound

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  9. The latest IUPAC name of the following compound

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  10. IUPAC name of (CH(3))(3)Cl is

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  11. In the compound HC-=C-CH=CH2, the hybridizations of C-2 and C-3 carbon...

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  12. Which of the following carbocations will be the most stable?

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  13. Arrange the following free radicals in the order of decreasing stabili...

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  14. Which isomer of hexane has only two different sets of structurally equ...

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  15. The number of primary, secondary and tertiary carbons in 3,4-dimethylh...

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  16. Which of the following is a 3 methyl butyl group.

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  17. An example of electrophile is

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  18. Which among the following free radicals is most stable

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  19. The molecule which is free from angular strain is

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  20. The reaction CH(2)=CH-CH(3)+HBrrarrCH(3)underset(Br)underset(|)CHCH(...

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