Schiff reagent gives pink colour with

Options

A. acetaldehyde
B. acetone
C. acetic acid
D. methyl acetone

Answer

To determine which compound gives a pink color with Schiff's reagent, we need to analyze the options provided and understand the nature of Schiff's reagent.

### Step-by-Step Solution:

1. **Understanding Schiff's Reagent**:
- Schiff's reagent is a chemical solution that is used to detect the presence of aldehydes. It is a mixture of fuchsine dye (a type of aniline) that has been decolorized by sulfur dioxide. When aldehydes are present, they react with Schiff's reagent to produce a pink color.

2. **Identifying the Compounds**:
- The options given are:
- Acetaldehyde (CH3CHO)
- Acetone (CH3COCH3)
- Acetic acid (CH3COOH)
- Methyl acetone (CH3CH2COCH3)

3. **Analyzing Each Compound**:
- **Acetaldehyde (CH3CHO)**: This is an aldehyde and will react with Schiff's reagent to produce a pink color.
- **Acetone (CH3COCH3)**: This is a ketone and does not react with Schiff's reagent, so it will not produce a pink color.
- **Acetic acid (CH3COOH)**: This is a carboxylic acid and does not react with Schiff's reagent, so it will not produce a pink color.
- **Methyl acetone (CH3CH2COCH3)**: This is also a ketone and will not react with Schiff's reagent, so it will not produce a pink color.

4. **Conclusion**:
- Among the options, only acetaldehyde is an aldehyde that will react with Schiff's reagent to give a pink color.

### Final Answer:
**Acetaldehyde gives a pink color with Schiff's reagent.**

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