| Read the assertion and reason carefully to mark the correct option out of the options given below: |
| Assertion: Alkyl benzene is not prepared by Friedel-Crafts alkylation of benzene. |
| Reason: Alkyl halides are less reactive than acyl halides. [AIIMS 2003] |
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Correct Answer: B
Solution :
[b] The alkyl benzene is not prepared by Friedel Craft?s alkylation of benzene because the monoalkyl product formed undergo alkylation to produce polyalkylated benzene. The reason that alkyl halides are less reactive than acyl halides is also correct but this is not the correct explanation of assertion.
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