Home Chemistry Hydrocarbon General Which of the following statements is/are cor…
Chemistry Hydrocarbon General Single Correct MCQ
Published on: August 11, 2026

Which of the following statements is/are correct.

A
Addition of HBr to Buta-1, 3-diene occurs at a faster rate than But-1-ene.
B
Addition of one mole of HBr to Buta-1, 3-diene at room temperature gives 1-Bromobut-2-ene as the major product.
C
When double and tripple bond are in the conjugation tripple bond is more reactive.
D
When double and tripple bond are in the conjugation, tripple bond is less reactive.

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The correct answer is:
CHECK THE SOLUTION.

(a, b, c)

when H+ add to the Buta-1, 3-diene in the r.d.s., an allylic carbocation is formed, however from But-1-ene, an 2 0 carbocation will form which will be less stable.

At room temperature, product will be TCP.

(carbocation as more stable)

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