In 3, 3-dimethylhex-1-ene-4-yne, there are $\_\_\_\_$ $\mathrm{sp}^{3}$, $\_\_\_\_$ $\mathrm{sp}^{2}$ and $\_\_\_\_$ sp hybridised carbon atoms respectively :

JEE Main · 2025 · 02 Apr 2025 · Shift 2 · Hydrocarbons

In 3, 3-dimethylhex-1-ene-4-yne, there are

____

sp^{3}

____

sp^{2}

and

____

sp hybridised carbon atoms respectively :

Answer: (A)

3,3-Dimethylhex-1-ene-4-yne is

CH X_{2} = CH - C (CH X_{3}) X_{2} - C \equiv C - CH X_{3}

. The doubly bonded carbons

CH X_{2} = CH

are

s p^{2}

(two carbons) and the triply bonded carbons

- C \equiv C -

are

s p

(two carbons). The quaternary C-3, the methyl at the end of the alkyne and the two branch methyls are all

s p^{3}

(four carbons). The molecule contains four

s p^{3}

, two

s p^{2}

and two

s p

hybridised carbon atoms respectively.

JEE Main · 2025 · 02 Apr 2025 · Shift 2 · Single correct option