What is the chemical name of vitamin A and which disease is caused by its deficiency?

Explanation

**Step-by-Step Text Solution:**

1. **Identify the Chemical Name of Vitamin A:**
- Vitamin A is chemically known as **retinol**. This name is derived from its role in the production of pigments in the retina of the eye.

2. **Understand the Role of Vitamin A:**
- Vitamin A is essential for maintaining good eyesight. It plays a crucial role in the formation of visual pigments that are necessary for vision, particularly in low-light conditions.

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