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  • Assertion (A) : Toluene on Friedel Crafts methylation gives o– and p–xylene. Reason (R) : CH_3-group bonded to benzene ring increases electron density at o– and p– position.

In the following questions a statement of assertion (A) followed by a statement of reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A) : Toluene on Friedel Crafts methylation gives o– and p–xylene.
Reason (R) : CH_3 group bonded to benzene ring increases electron density at o– and p– position.
(i) Both A and R are correct and R is the correct explanation of A.
(ii) Both A and R are correct but R is not the correct explanation of A.
(iii) Both A and R are not correct.
(iv) A is not correct but R is correct.

Answers (1)

The answer is the option (i) Both A and R are correct, and R is the correct explanation of A.

Explanation: CH_3 group is an electron-withdrawing group. It activates the benzene ring due to hyperconjugation effect. Toluene has -CH_3 group attached to the benzene ring. This group also increases the electron density at ortho and para positions for electrophile attacks.

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