Benzaldehyde reduces Tollens' reagent but not the Fehling's or the Benedict's solution. Explain.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Compounds:**
- Benzaldehyde (C₆H₅CHO) is an aromatic aldehyde. It contains a carbonyl group (C=O) attached to a benzene ring.

2. **Tollens' Reagent:**
- Tollens' reagent is a solution of silver nitrate (AgNO₃) in ammonia (NH₃). It is a mild oxidizing agent that can oxidize aldehydes to carboxylic acids while reducing silver ions (Ag⁺) to metallic silver (Ag).
- The reaction with benzaldehyde involves the oxidation of the aldehyde group to a carboxylic acid, which results in the reduction of the silver ions.
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