In 3,3-dimethylhex-1-en-4-yne, there are _________$\mathrm{sp}^3$,_________$\mathrm{sp}^2$ and_________ sp hybridised carbon atoms respectively.
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- $4,2,2$
- $2,4,2$
- $3,3,2$
- $2,2,4$
The Correct Option is A
Solution and Explanation
$sp^3$ carbons: the quaternary C-3, the two methyl groups on it and the terminal $CH_3$, i.e. 4.
$sp^2$ carbons: $CH_2{=}CH$, i.e. 2.
$sp$ carbons: the two carbons of the triple bond, i.e. 2.
The answer is $4, 2, 2$: option (1).
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