The heating of carbonyl compounds with `H_2"NNH"_2` and strong base is called

Options

A. Wolf - Kishner reduction
B. Clemmensen reduction
C. Rosenmund reduction
D. Catalytic reduction

Answer

To solve the question regarding the heating of carbonyl compounds with hydrazine (`H2NNH2`) and a strong base, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The question mentions carbonyl compounds, which include aldehydes and ketones, and hydrazine (`H2NNH2`), which is a reducing agent.

2. **Recognize the Role of Strong Base**: The strong base, typically potassium hydroxide (KOH), is used in conjunction with hydrazine to facilitate the reaction. The base helps in deprotonating the hydrazine, making it a better nucleophile.

3. **Understand the Reaction Type**: The reaction involves the reduction of the carbonyl group (C=O) in the presence of hydrazine and a strong base. This process converts the carbonyl compound into an alkane.

4. **Name the Reaction**: The specific reaction that occurs when carbonyl compounds are heated with hydrazine and a strong base is known as the **Wolff-Kishner Reduction**.

5. **Conclusion**: Therefore, the answer to the question is that the heating of carbonyl compounds with `H2NNH2` and a strong base is called the **Wolff-Kishner Reduction**.

### Final Answer:
The heating of carbonyl compounds with `H2NNH2` and strong base is called **Wolff-Kishner Reduction**.

---