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JEE Main levelSingle correct optionDifficulty 2 of 3g3021

In the tert-butyl cation, the $C - C - C$ bond angle at the cationic carbon is closest to:

A $12 0^{\circ}$
B $9 0^{\circ}$
C $109. 5^{\circ}$
D $18 0^{\circ}$

Answer: A

The cationic carbon is

s p^{2}

hybridised with three sigma bonds, so the arrangement is trigonal planar with angles of about

12 0^{\circ}

.

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