Question

Q. Anti-Markownikoff addition of \(H B r\) is not observed in
A propene
B butene
(c) 2-butene
D 2-pentene

Answer 1

Solution:
Anti-Markownikoff addition is not observed in 2 -butene because both the doubly bonded carbons have same number of hydrogen atoms i.e., the alkene is symmetrical.
$$
\mathrm{H}_{3} \mathrm{C}-\underset{\text { but }-2 \text { ene }}{\mathrm{CH}}=\underset{\text { en }}{\mathrm{CH}}-\mathrm{CH}_{3}
$$

Answer 2

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