Vitamin containing metal atom is

Options

A. Vitamin-C
B. Vitamin -`B_6`
C. Vitamin- `B_12`
D. Vitamin-A

Answer

To solve the question "Vitamin containing metal atom is," we need to identify which vitamin among the given options contains a metal atom in its structure. The options provided are:

1. Vitamin C
2. Vitamin B6
3. Vitamin B12
4. Vitamin A

Let's analyze each option step by step:

### Step 1: Analyze Vitamin C
- Vitamin C, also known as ascorbic acid, is a water-soluble vitamin found in various fruits and vegetables. It does not contain any metal atoms in its structure.

**Hint:** Look for vitamins that are known to contain metal ions.

### Step 2: Analyze Vitamin B6
- Vitamin B6, also known as pyridoxine, is another water-soluble vitamin. It plays a role in amino acid metabolism but does not contain any metal atoms in its structure.

**Hint:** Consider the different forms of vitamin B and their compositions.

### Step 3: Analyze Vitamin B12
- Vitamin B12, also known as cobalamin, is unique among the vitamins because it contains a metal atom, specifically cobalt. Cobalt is essential for the function of this vitamin, which is vital for red blood cell formation and neurological function.

**Hint:** Identify which vitamin is known for its complexity and presence of cobalt.

### Step 4: Analyze Vitamin A
- Vitamin A is a fat-soluble vitamin that is important for vision, immune function, and skin health. It is derived from animal products and certain vegetables but does not contain any metal atoms.

**Hint:** Think about the sources of vitamins and their biological roles.

### Conclusion
After analyzing all the options, we find that the only vitamin that contains a metal atom is **Vitamin B12**, which contains cobalt.

**Final Answer:** Vitamin B12