Question

Assertion (A) : $C_2{H}_{5}Cl$ gives ethyl benzene with benzene in presence of anhydrous aluminium chloride.
Reason (R) : Anhydrous aluminium chloride acts as Lewis acid and generates ethyl carbonium ion electrophile.

• A. Both A and R are true and R is the correct explanation to A
• B. Both A and R are true and R is not the correct explanation to A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

Answer: (A)

Both A and R are true and R is the correct explanation to A

Its Friedel-craft alkylation reaction, benzene reacts with an alkyl halide in the presence of anhy. $AlC{l}_3$ and alkyl benzene $C_6{H}_5-C_2{H}_5$ forms as a product.

Here $AlC{l}_3$ acts like an Lewis acid and generates ethyl carbonium ion electrophile.

Reaction mechanism of the process shown above.

Option A is correct.