JEE Main Chemistry question

Correct statement about 1,3-butadiene [UP SEE 2003]

(A)Conjugated double bonds are present
(B)Reacts with HBr
(C)Forms polymer
(D)All of the aboveCorrect

Answer: (D)

Solution

1,3-Butadiene (CH=CH–CH=CH) has alternating single and double bonds (a conjugated diene); it undergoes 1,2- and 1,4-addition with HBr; and it readily polymerises

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Question ID VK-142197