Write structures of compounds A,B and C in each of the following reactions:
(i) `C_(6)H_(5) Br overset("Mg/dry ether")rarr A underset((b)H_(3)O^(+))overset((a) CO_(2)(g))rarr B overset(PCl_(5))rarr C`
(ii) `CH_(3)CN underset((b) H_(3)O^(+))overset((a) SnCl_(2)//HCl)rarr A overset("dil."NaOH)rarr B overset(Delta)rarr C`

Explanation

To solve the question, we will analyze the reactions step by step and determine the structures of compounds A, B, and C for each reaction.

### (i) Reaction of Bromobenzene with Grignard Reagent

1. **Starting Compound**: The first compound is bromobenzene, which can be represented as:
\[ \text{C}_6\text{H}_5\text{Br} \]
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