How many tranquilizer are in the following ?
Luminal , Crocin , Equanil , Seconal , Penicillin

Answer

To determine how many tranquilizers are in the list provided (Luminal, Crocin, Equanil, Seconal, Penicillin), we need to identify which of these substances are classified as tranquilizers.

### Step-by-Step Solution:

1. **Understanding Tranquilizers**:
- Tranquilizers are drugs that are used to treat anxiety, tension, and disturbances of the mind. They primarily act on the central nervous system to calm the individual.

2. **Analyzing Each Substance**:
- **Luminal**: This is a barbiturate that is used as a sedative and is classified as a tranquilizer.
- **Crocin**: This is a pain reliever (analgesic) used to treat fever and pain, not classified as a tranquilizer.
- **Equanil**: This is a tranquilizer used to treat anxiety and is classified as such.
- **Seconal**: This is also a barbiturate used as a sedative and is classified as a tranquilizer.
- **Penicillin**: This is an antibiotic used to treat bacterial infections and is not a tranquilizer.

3. **Identifying the Tranquilizers**:
- From the analysis, the substances that are tranquilizers are Luminal, Equanil, and Seconal.

4. **Counting the Tranquilizers**:
- The total number of tranquilizers in the list is three: Luminal, Equanil, and Seconal.

### Final Answer:
There are **3 tranquilizers** in the list: Luminal, Equanil, and Seconal.

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