Glucose reacts with Tollen's reagent to give a derivative of

Options

A. monocarboxylic acid
B. dicarboxylic acid
C. ketone
D. keto acid

Explanation

To solve the question of what derivative glucose gives when it reacts with Tollen's reagent, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of Glucose**:
- Glucose is an aldohexose, meaning it contains an aldehyde group (-CHO) and has six carbon atoms. The open-chain structure of glucose can be represented as:
```
CHO - (CHOH)4 - CH2OH
```

2. **Understand Tollen's Reagent**:
- Tollen's reagent is a solution of silver nitrate (AgNO3) in ammonia (NH3) that contains the complex ion [Ag(NH3)2]+. It is used to oxidize aldehydes to carboxylic acids.

3. **Reaction Mechanism**:
- When glucose reacts with Tollen's reagent, the aldehyde group (-CHO) of glucose is oxidized to a carboxylic acid group (-COOH). The reaction can be summarized as:
```
CHO (from glucose) + [Ag(NH3)2]+ → COOH (carboxylic acid) + Ag (silver precipitate)
```

4. **Product Formation**:
- The product formed from the oxidation of glucose will be gluconic acid, which has the structure:
```
HOOC - (CHOH)4 - CH2OH
```

5. **Identify the Type of Derivative**:
- The product, gluconic acid, contains one carboxylic acid group, making it a monocarboxylic acid. Therefore, the derivative formed from glucose upon reaction with Tollen's reagent is a derivative of a monocarboxylic acid.

### Final Answer:
The derivative of glucose when it reacts with Tollen's reagent is a **derivative of monocarboxylic acid**.

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