Which of the following statement are correct about barbiturates?
I.These are class tranquilisers
II.Barbiturates are hypnotic
III.These are used as sleeping pills
Choose the correct option

Options

A. I and II
B. II and III
C. only III
D. all of these

Answer

To determine which statements about barbiturates are correct, let's analyze each statement step by step:

### Step 1: Understand what barbiturates are
Barbiturates are a class of drugs that are derived from barbituric acid. They are primarily used for their sedative and hypnotic properties.

**Hint:** Barbiturates are derived from a specific acid and have sedative effects.

### Step 2: Evaluate Statement I
The first statement claims that "These are class tranquilizers." This is correct because barbiturates are indeed classified as tranquilizers due to their calming effects on the central nervous system.

**Hint:** Consider the classification of drugs based on their effects on the nervous system.

### Step 3: Evaluate Statement II
The second statement says, "Barbiturates are hypnotic." This is also correct. Barbiturates are known for their ability to induce sleep, which is a characteristic of hypnotic drugs.

**Hint:** Think about the properties of drugs that induce sleep.

### Step 4: Evaluate Statement III
The third statement states, "These are used as sleeping pills." This statement is correct as well. Barbiturates are commonly prescribed as sleeping pills due to their sedative effects.

**Hint:** Reflect on the common uses of barbiturates in medicine.

### Conclusion
All three statements about barbiturates are correct:
1. They are class tranquilizers.
2. They are hypnotic.
3. They are used as sleeping pills.

Thus, the correct option is that all statements are correct.

**Final Answer:** Option 4: All of these.