Identify the reagents W, X, Y and Z.
`C_(6)H_(6) overset(W)to C_(6)H_(5)SO_(3)H overset(X)to C_(6)H_(5)ON a overset(Y)to C_(6)H_(5)OH overset(Z)to C_(6)H_(5)OCOCH_(3)`

Explanation

To identify the reagents W, X, Y, and Z in the given sequence of reactions, let's analyze each step carefully.

1. **Starting Compound**: The reaction begins with benzene, which has the formula \( C_6H_6 \).

2. **Step 1**: The first transformation is from benzene to benzene sulfonic acid (\( C_6H_5SO_3H \)). This reaction involves the sulfonation of benzene.
- **Reagent W**: The reagent used for this transformation is **dilute sulfuric acid (H2SO4)**.
- **Reaction**:
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