Question

which one is the most stable carbonation among...
1.HC triple bond C negative
2.C6H5 negative
3.(CH3)C-CH2 negative
4.(CH3)C=CH negative
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Answer 1

Answer:

Explanation:

The hyperconjugation involves the delocalisation of sigma electrons to the empty p orbital present at the alpha position as shown in the above image.

Hence, there is need of a sigma C−H bond of the sp  

3

 hybridized carbon atom which is present at alpha position with respect to the carbocation.

More the number of sigma C−H bonds at alpha position, more the number of hyperconjugating structures and more the stability. Hence structure (b) which is having nine sigma C−H bonds will be the most stable carbocation

Answer 2

Answer:

2

Explanation:

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