The reagent with which both acetaldehyde and acetophenone react easily are

Options

A. Fehling's solution
B. Schiff's reagent
C. Tollen's reagent
D. 2, 4 - dinitrophenylhydrazine

Answer

To determine the reagent that reacts easily with both acetaldehyde and acetophenone, we will analyze the properties of the given compounds and the reagents mentioned.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- Acetaldehyde (CH₃CHO) is an aldehyde.
- Acetophenone (C₆H₅COCH₃) is a ketone.

2. **Evaluate the Reagents**:
- **Fehling's Solution**: This reagent is known to oxidize aldehydes and can oxidize alpha-hydroxy ketones. However, it does not react with aromatic ketones like acetophenone.
- **Sodium Nitroprusside (SIF Reagent)**: This reagent reacts with aldehydes and aliphatic ketones but does not react with aromatic ketones.
- **2,4-Dinitrophenylhydrazine (2,4-DNP)**: This reagent reacts with both aldehydes and ketones, forming a colored precipitate. It is widely used to identify carbonyl compounds.

3. **Conclusion**:
- Among the reagents evaluated, **2,4-Dinitrophenylhydrazine (Brady's reagent)** is the only one that can react with both acetaldehyde and acetophenone, providing a positive test for both.

### Final Answer:
The reagent that reacts easily with both acetaldehyde and acetophenone is **2,4-Dinitrophenylhydrazine (2,4-DNP)**.

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