| Column I (Mineral) | Column II (Characteristic feature) | ||
| A. | Potassium | 1. | Constituent of ferredoxin |
| B. | Sulphur | 2. | Involved in stomatal movement |
| C. | Molybdenum | 3. | Needed in the synthesis of auxin |
| D. | Zinc | 4. | Component of nitrogenase |
A) A-2, B-1, C-4, D-3
B) A-1, B-2, C-3, D-4
C) A-4, B-3, C-2, D-1
D) A-1, B-3, C-4, D-2
Correct Answer: A
Solution :
[a]| The correct matching is |
| Potassium - Involved in stomata movement |
| Sulphur - Constituent of ferredoxin |
| Molybdenum - Component of nitrogenase |
| Zinc - Needed in the synthesis of auxin |
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