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1, 4-Dimethyl benzene on heating with an...

1, 4-Dimethyl benzene on heating with anhydrous `AICI_(3)" and "HCI` produces :

A

1,2-dimethylbenzene

B

1,3-dimethylbenzene

C

1,2,3-trimethylbenzene

D

ethylbenzene

Text Solution

Verified by Experts

The correct Answer is:
B
1,4-Dimethylbenzene when heated with anhydrous `AlCl_3` and HCl undergoes isomerization to give thermodynamically more stable 1,3-dimethylbenzene as shown below :
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PRADEEP-HYDROCARBONS-Competition Focus (JEE(main and advanced)/Medical Entrance) I. MULTIPLE CHOICE QUESTIONS
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  2. The following desulphonation reaction, takes place through intermed...

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  3. The electrophile, E^(o+) attacks the benzene ring to generate the inte...

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  4. 1, 4-Dimethyl benzene on heating with anhydrous AICI(3)" and "HCI prod...

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  5. The reaction of toluene with Cl(2) in presence of FeCl(3) gives pre...

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  6. Toluene react with a halogen in the presence of iron (III) chloride gi...

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  7. Find the major product in the following reaction

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  8. Presence of a nitro group in a benzene ring.

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  9. Which of the following substituents deactivates the benzene ring towar...

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  10. Some meta-directing substituents in aromatic substitution are given wh...

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  11. Which one of the following is most reactive towards electrophilic atta...

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  13. The major product obtained on monobromination (Br2//FeBr2) of the fol...

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  15. Among the following compounds, the decreasing order of reactivity towa...

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  16. The order of decreasing reactivity towards an electrphilic reagent for...

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  17. Which of the following is most reactive towards electrophilic substitu...

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  18. Which one of the following is most reactive towards electrophilic reag...

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