1.

Which of the following is not an isomer of 3-methylbut-1-yne ?

Answer»

Pent-1-yne
Buta-1,3-diene
Pent-2-yne
Penta-1,3-diene

Solution :1,3-Butadiene `(CH_2=CHCH=CH_2)` has only FOUR CARBON ATOMS while all OTHERS have FIVE carbon atoms.


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