The organic compound that will response Fehling's solution test is

Options

A. Ethanol
B. Acetone
C. Maltose
D. Benzaldehyde

Answer

To determine which organic compound will respond to Fehling's solution test, we need to understand what types of compounds can give a positive result in this test.

### Step-by-Step Solution:

1. **Understanding Fehling's Solution**:
- Fehling's solution is used to test for the presence of reducing sugars and aldehydes. It contains copper(II) ions, which are reduced to copper(I) oxide (a red precipitate) in the presence of reducing agents.

2. **Identifying the Compounds**:
- We need to analyze the given options to identify which one is a reducing sugar or an aldehyde.
- The options provided are ethanol, acetone, benzaldehyde, and maltose.

3. **Analyzing Each Option**:
- **Ethanol**: This is an alcohol and does not contain an aldehyde group. Therefore, it will not respond to Fehling's solution.
- **Acetone**: This is a ketone and also does not contain an aldehyde group. Therefore, it will not respond to Fehling's solution.
- **Benzaldehyde**: This is an aromatic aldehyde. However, aromatic aldehydes do not typically give a positive result with Fehling's solution due to steric hindrance and the stability of the aromatic ring.
- **Maltose**: This is a disaccharide that contains a free aldehyde group when it is in solution. Maltose is classified as a reducing sugar and will give a positive result with Fehling's solution.

4. **Conclusion**:
- Among the options, maltose is the only compound that will respond positively to Fehling's solution test.

### Final Answer:
The organic compound that will respond to Fehling's solution test is **maltose**.