Among the following, the number of tranquilizer/s is/are ______ .

Options

A. Chloroliazepoxide
B. Veronal
C. Valium
D. Salvarsan

Answer

To determine the number of tranquilizers among the given drugs, we will analyze each drug mentioned in the question.

### Step 1: Understand what tranquilizers are
Tranquilizers are medications used to reduce anxiety, agitation, and other mental health issues. They are often prescribed for conditions such as anxiety disorders and insomnia.

### Step 2: Identify the drugs listed
The drugs mentioned in the question are:
1. Chloralazepoxide
2. Veronal
3. Velium
4. Selverson

### Step 3: Classify each drug
- **Chloralazepoxide**: This is a benzodiazepine and is classified as a tranquilizer. It is used to treat anxiety and is known for its sedative properties.

- **Veronal**: This is also a sedative and is used to treat insomnia. It is classified as a tranquilizer.

- **Velium**: This is another name for Diazepam, which is a well-known benzodiazepine used to treat anxiety and is classified as a tranquilizer.

- **Selverson**: This is an antibacterial drug used to treat syphilis and is not classified as a tranquilizer.

### Step 4: Count the tranquilizers
From the analysis:
- Chloralazepoxide: Tranquilizer
- Veronal: Tranquilizer
- Velium: Tranquilizer
- Selverson: Not a tranquilizer

Thus, the tranquilizers among the given drugs are Chloralazepoxide, Veronal, and Velium.

### Conclusion
The number of tranquilizers among the given drugs is **3**.

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