Fehling's solution is used for detection of

Options

A. Glucose
B. Starch
C. All types of carbohydrates
D. Fats

Answer

**Step-by-Step Solution:**

1. **Understanding Fehling's Solution**: Fehling's solution is a chemical reagent that is commonly used in laboratories to test for the presence of reducing sugars, particularly monosaccharides.

2. **Identifying Monosaccharides**: Monosaccharides are the simplest form of carbohydrates and include sugars like glucose, fructose, and galactose. They are characterized by their ability to donate electrons to other molecules, which is a key property in the Fehling's test.

3. **Application of Fehling's Solution**: When Fehling's solution is mixed with a sample containing reducing sugars and heated, a color change occurs, indicating the presence of these sugars. The typical result is a formation of a red precipitate, which is copper(I) oxide, confirming the presence of reducing sugars.

4. **Specific Example - Glucose**: Among the monosaccharides, glucose is a primary example that Fehling's solution can detect. Therefore, when asked what Fehling's solution is used for, the answer is primarily glucose.

5. **Exclusion of Other Options**:
- **Starch**: The iodine test is used for starch detection, not Fehling's solution.
- **All Types of Carbohydrates**: Fehling's solution specifically tests for monosaccharides, not disaccharides or polysaccharides.
- **Fats**: The emulsion test is used for detecting fats, not Fehling's solution.

6. **Conclusion**: The correct answer to the question is that Fehling's solution is used for the detection of glucose, which is a type of monosaccharide.

**Final Answer**: Fehling's solution is used for the detection of glucose.

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