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Question

Which of the following is used as a solvent in the Friedel Crafts reaction?


A

Benzene

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B

Methane

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C

Nitrobenzene

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D

Hydrochloric acid

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Solution

The correct option is C

Nitrobenzene


Explanation:

  • A Friedel-Crafts reaction is a type used to introduce a new substituent to an aromatic benzene ring by electrophilic substitution reactions.
  • It usually involves alkylation and acylation reactions.
  • In any organic process, the solvent is chosen in such a way that it does not interfere with the chemical reaction and does not result in the development of unwanted side reactions or products.
  • Nitrobenzene has NO2 group which acts as a strong electron-withdrawing group and deactivates the benzene ring.
  • The reaction will only occur at the reactant we will use, no side products will be obtained.
  • So, it is a good solvent to use in Friedel-Crafts reactions.

Therefore, Option (C) is correct. Nitrobenzene is used as a solvent for Friedel-Crafts reactions.


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