Question

What is the hybridisation state of benzyl carbonium
ion ?
+
[NEET Kar. 2013]
(a) sp³ (b) sp²
(c) spd² (d) sp²d

Answer 1

The hybridisation state of benzyl carbonium  ion is sp2.

Option (B) is correct.

Explanation:

All carbocations are sp​2 hybridised and they have planar triangular structure. The value of the H = 3 only. 

H= 1/2 [ Valence electron of the central atom + no of surrounding atom -cation + anion]

 = 1/2[4 + 3 -1+0]

 = 6/2 = 3.

Thus the hybridisation state of benzyl carbonium  ion is sp2.

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