Which is not an essential micronutrient for plants? UPSC Prelims PYQ 1996
Which one of the following is not an essential micronutrient for plants?
- Boron
- Zinc
- Sodium
- Copper
Explanation
Option (c) is correct
- Essential micronutrients for plants include Boron, Zinc, Copper, Iron, Manganese, Molybdenum, etc. Sodium is not essential for most plants (except some halophytes and C4 plants in limited roles).
Answer: (c) Sodium
