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Among the following carbocations : (I)...

Among the following carbocations :
(I) `Ph_(2)overset(+)"C"CH_(2)Me (II) PhCH_(2)CH_(2)overset(+)"C"HPh`
`"(III) "Ph_(2)CHoverset(+)"C"HMe" (IV) "Ph_(2)C(Me)overset(+)"C"H_(2)` the order of stability is :

A

`IV gt II gt I gt III`

B

`I gt II gt III gt IV`

C

`II gt I gt IV gt III`

D

`I gt IV gt III gt II`

Text Solution

Verified by Experts

The correct Answer is:
B

Stability of carbocation depends upon number of resonating structures and extent of I I  , effect
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ERRORLESS-GENERAL ORGANIC CHEMISTRY -NCERT BASED QUESTIONS (Dipole Moment, Resonance and Reaction Intermediates )
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  2. Which is the decreasing order of stability (i) CH(3)-overset(+)(CH)-...

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  3. Among the following carbocations : (I) Ph(2)overset(+)"C"CH(2)Me (II...

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  4. Find the missing frequencies in the following frequncy distribution wh...

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  5. The inequation that best describes the graph given below is <img ...

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  6. Which of the following is an electrophile ?

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  7. The presence of the chlorine atom on benzene ring makes the second sub...

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  8. Which kind of fission is favoured by sunlight

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  9. Which one of the following characteristics belongs to an electrophile?

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  10. The action of AlCl(3) in Frieded Craft's reaction is:

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  11. Strongest nucleophile is

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  12. CH(3)CH(2)Cl undergoes homolytic fission, produces

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  13. A nucleophile must have :

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  14. Carbocation which is most stable

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  15. Convalent bond can undergo fission in two different ways. The correct ...

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  16. Which one of the following will be the most easiliy attacked by an ele...

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  17. Reactivity towards nucleophilic additions reaction of (I) IHCHO (II), ...

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  18. Least active electrophile is :

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  19. The correct order of leaving group ability in a nucleophilic substitut...

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  20. Among the following compounds which can be dehydrated very easily is:

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