Question

Q1 An aromatic compound 'A' on treatment with CHCl3 /KOH gives 'B' ,which when distilled with zinc dust gives 'C'. 'C' on oxidation with acidified potassium dichromate gives 'D' having molecular formula C7H6O2 ,which on further reaction with NaOH and soda-lime gives 'E'. Identify A, B, C,D &E and write reactions involved.

Answer 1

Answer:

Here are the answers

Explanation:

Refer attachment for explanation !!!

Answer 2

Answer:

A: Benzaldehyde

B: Benzyl alcohol

C: Benzophenone

D: Benzoic acid

E: Benzene

Explanation:

Reaction 1:

A + CHCl3/KOH → B

This is a reaction known as a Friedel-Crafts reaction, which involves attaching a benzyl group to an aromatic ring.

Reaction 2:

B + Zn dust → C

This is a reductive distillation reaction, which involves the reduction of the benzyl alcohol to benzophenone using zinc as the reducing agent.

Reaction 3:

C + Acidified potassium dichromate → D

This is an oxidation reaction, which involves the oxidation of the benzophenone to benzoic acid using the acidified potassium dichromate as the oxidizing agent.

Reaction 4:

D + NaOH + Soda lime → E

This is a hydrolysis reaction, which involves the hydrolysis of the benzoic acid to benzene using sodium hydroxide and soda lime as the catalysts.

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