Which of the following does not reduce Fehling solution :

Options

A. Glucose
B. Fructose
C. Sucrose
D. Maltose

Answer

To solve the question "Which of the following does not reduce Fehling solution?" we need to understand the properties of the sugars listed in the options: glucose, fructose, sucrose, and maltose.

### Step-by-Step Solution:

1. **Understand Fehling's Test**: Fehling's solution is a chemical test used to identify reducing sugars. Reducing sugars are those that can donate electrons to another chemical, which reduces it. When a reducing sugar is present, Fehling's solution changes color and a precipitate is formed.

2. **Identify Reducing Sugars**:
- **Glucose**: This is a monosaccharide and is known to be a reducing sugar. It can reduce Fehling's solution.
- **Fructose**: This is also a monosaccharide and is a reducing sugar. It can reduce Fehling's solution as well.
- **Sucrose**: This is a disaccharide composed of glucose and fructose. However, sucrose is a non-reducing sugar because the glycosidic bond between glucose and fructose prevents it from acting as a reducing agent.
- **Maltose**: This is a disaccharide made up of two glucose units. Maltose is a reducing sugar and can reduce Fehling's solution.

3. **Conclusion**: Among the options provided, sucrose is the only sugar that does not reduce Fehling's solution because it is a non-reducing sugar.

### Final Answer:
**Sucrose does not reduce Fehling's solution.**

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