Assertion :Addition of $H B r$ to propene yields $2 -$ bromopropane but in presence of a peroxide it yields $1 -$ bromopropane. Reason: When reaction is carried out in the presence of a peroxide it follows free radial mechanism? free radical is more stable then $1^{o}$ free radical.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Hence option (A) is correct.

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Similar questions

Assertion (A) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Like bromination of benzene, bromination of phenol is also carried out in the presence of Lewis acid.
Reason (R) Lewis acid polarises the bromine molecule.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Q. Assertion :Addition of HBr to propene yields 2-bromopropane but in presence of a peroxide it yields 1-bromopropane. Reason: When reaction is carried out in the presence of a peroxide it follows free radical mechanism,

2^{0}

free radical is more stable than

1^{0}

free radical.

Q. Assertion :Propene reacts with

H B r

in the presence of benzoyl peroxide to yield 2-bromopropane. Reason: In presence of peroxide, the addition of

H B r

to propene follows ionic mechanism.

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Assertion :Addition of HBr to propene yields 2−bromopropane but in presence of a peroxide it yields 1−bromopropane. Reason: When reaction is carried out in the presence of a peroxide it follows free radial mechanism? free radical is more stable then 1o free radical.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionHence option (A) is correct.

Assertion :Addition of $H B r$ to propene yields $2 -$ bromopropane but in presence of a peroxide it yields $1 -$ bromopropane. Reason: When reaction is carried out in the presence of a peroxide it follows free radial mechanism? free radical is more stable then $1^{o}$ free radical.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Hence option (A) is correct.