Chemical name of vitamin A is

Options

A. thiamine
B. axerophthol (retinol)
C. ascorbic acid
D. nicotinamide

Explanation

To find the chemical name of vitamin A, we can follow these steps:

### Step 1: Identify the options given
The options provided for the chemical name of vitamin A are:
- A) Thiamine
- B) Retinol
- C) Ascorbic acid
- D) Nicotinamide

### Step 2: Recall the known chemical names
Vitamin A is known to have several forms, with retinol being the most common and well-known form.

### Step 3: Analyze each option
- **Thiamine**: This is actually vitamin B1, not vitamin A.
- **Retinol**: This is indeed the chemical name for vitamin A.
- **Ascorbic acid**: This is vitamin C, not vitamin A.
- **Nicotinamide**: This is a form of vitamin B3, not vitamin A.

### Step 4: Conclude the correct answer
From the analysis, we can conclude that the chemical name of vitamin A is **Retinol**.

### Final Answer:
The chemical name of vitamin A is **Retinol**.

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