Hydrocarbons 2 Question 38
40. Statement I 1-butene on reaction with $\mathrm{HBr}$ in the presence of a peroxide produces 1-bromobutane.
Statement II It involves the formation of a primary radical.
$(2000,1 \mathrm{M})$
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Answer:
Correct Answer: 40. Terminal alkyne (ethyne)
Solution:
- $\mathrm{CH}{3}-\mathrm{CH}{2}-\mathrm{CH}=\mathrm{CH}_{2}+\mathrm{Br}^{\bullet} \longrightarrow$
$$ \underset{\text { a secondary radical }}{\mathrm{CH}{3}-\mathrm{CH}{2}-\dot{\mathrm{C}} \mathrm{H}-\mathrm{CH}_{2} \mathrm{Br}} $$
Therefore, Statement I is correct but Statement II is incorrect.
