In the following questions two Statement-1 (Assertion) and Statement-2 (Reason) are provided. Each questions has 4 choices (a), (b), (c) and (d) for its answer, out of which ONLY ONE is correct. Mark your responses from the following options:
Statement- 1: 1-Butene on reaction with HBr in the presence of a peroxide produces 1-bromobutane.
Statement- 2: It involves the formation of a primary radical.

Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

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Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

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Statement-1 is true but Statement-2 is false.

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Statement-1 is false but Statement-2 is true.

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Solution

The correct option is C
Statement-1 is true but Statement-2 is false.

Hereassertion is correct but reasoning is incorrect. In presence of peroxide, addition of HBr on alkenes takes place via free radicals; here two free radicals are formed, $2^{\circ}$ free radical, being more stable, governs the product.

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Similar questions

In the following questions two Statement-1 (Assertion) and Statement-2 (Reason) are provided. Each questions has 4 choices (a), (b), (c) and (d) for its answer, out of which ONLY ONE is correct. Mark your responses from the following options:
Statement- 1: 1-Butene on reaction with HBr in the presence of a peroxide produces 1-bromobutane.
Statement- 2: It involves the formation of a primary radical.

In the following question two Statement-I (Assertion) and Statement-2 (Reason) are provided. each question has 4 choices (a), (b), (c) and (d) for its answer, out of which Only One is correct. Mark your responses from the following options:
Statement-1: 2-Pentyne on hydrogenation in presence of Lindlar catalyst gives cis-1-pentene.
Statement-2: Addition of hydrogen is a stereospecific reaction.

In the following questions two Statement - 1 (Assertion) and Statement - 2 (Reason) are provided. Each question has 4 choices (a), (b), (c) and (d) for its answer, out of which ONLY ONE is correct. Mark your responses from the following options:

Statement - 1 : Electromagnetic radiation will be emitted for the transition $2 P_{z} \to 2 p_{x}$ .

Statement - 2 : No transition of electron takes place between $2 P_{z}$ and $2 P_{x}$ orbitals.

Statement - 1 : The transition of electrons $n_{3} \to n_{2}$ in H - atom will emit radiation of higher frequency than $n_{4} \to n_{3}$ .

Statement - 2 : Principal shells $n_{2}$ $n_{3}$ have lower energy than $n_{4}$ .

Q. Statement-I : 1-Butene on reaction with HBr in the presence of a peroxide produces 1-bromobutane.
Because
Statement-II : It involves the formation of a primary radical.

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The correct option is C Statement-1 is true but Statement-2 is false. Hereassertion is correct but reasoning is incorrect. In presence of peroxide, addition of HBr on alkenes takes place via free radicals; here two free radicals are formed, 2∘ free radical, being more stable, governs the product.