Which one of the following pairs is not correctly matched

Options

A. Vitamin `B_(6)` - Beri-beri
B. Vitamin C - Scurvy
C. Vitamin `B_(5)` - Pellagra
D. Vitamin `B_(12)`- Pernicious anaemia

Answer

To solve the question of which pair is not correctly matched, we need to analyze the given pairs of vitamins and their associated deficiency diseases.

### Step-by-Step Solution:

1. **Identify the Vitamins and Their Deficiency Diseases**:
- A: Vitamin B6 - Very Very Disease
- B: Vitamin C - Scurvy
- C: Vitamin B5 - Plague
- D: Vitamin B12 - Pernicious Anemia

2. **Evaluate Each Pair**:
- **Pair A (Vitamin B6 - Very Very Disease)**:
- Vitamin B6 deficiency leads to peripheral neuropathy, not Very Very Disease. Very Very Disease is caused by a deficiency of Vitamin B1 (Thiamine).
- **Conclusion**: This pair is NOT correctly matched.

- **Pair B (Vitamin C - Scurvy)**:
- Vitamin C deficiency causes Scurvy, which is correct.
- **Conclusion**: This pair is correctly matched.

- **Pair C (Vitamin B5 - Plague)**:
- Vitamin B5 (Pantothenic Acid) deficiency does not cause the plague. The plague is associated with a deficiency of Vitamin B3 (Niacin).
- **Conclusion**: This pair is NOT correctly matched.

- **Pair D (Vitamin B12 - Pernicious Anemia)**:
- Vitamin B12 deficiency leads to pernicious anemia, which is correct.
- **Conclusion**: This pair is correctly matched.

3. **Final Assessment**:
- The pairs that are NOT correctly matched are A (Vitamin B6 - Very Very Disease) and C (Vitamin B5 - Plague).

### Answer:
The pairs that are not correctly matched are:
- A: Vitamin B6 - Very Very Disease
- C: Vitamin B5 - Plague