Question:
Which of the following groups has all three micro-elements?
Which of the following groups has all three micro-elements?
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Mg, K, S, Ca are macronutrients. Zinc and copper are micronutrients.
Updated On: Nov 12, 2026
- Magnesium, Potassium, Zinc
- Zinc, Copper, Silicon
- Potassium, Sulphur, Calcium
- Sulphur, Calcium, Chlorine
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Macronutrients (needed in large amounts) include N, P, K, Ca, Mg and S. Micronutrients are needed in trace amounts, such as Fe, Mn, Zn, Cu, B, Mo and Cl.
Step 2: Check the options
Option (A) has Mg and K, option (C) has K, S and Ca, and option (D) has S and Ca. These contain macronutrients.
Step 3: Option (B)
Zinc and copper are micronutrients and silicon is a trace element, so this is the only group where all three are trace elements.
Final Answer:
Zinc, copper and silicon form the group of trace elements. \[ \boxed{\text{(B) }\text{Zinc, Copper, Silicon}} \]
Macronutrients (needed in large amounts) include N, P, K, Ca, Mg and S. Micronutrients are needed in trace amounts, such as Fe, Mn, Zn, Cu, B, Mo and Cl.
Step 2: Check the options
Option (A) has Mg and K, option (C) has K, S and Ca, and option (D) has S and Ca. These contain macronutrients.
Step 3: Option (B)
Zinc and copper are micronutrients and silicon is a trace element, so this is the only group where all three are trace elements.
Final Answer:
Zinc, copper and silicon form the group of trace elements. \[ \boxed{\text{(B) }\text{Zinc, Copper, Silicon}} \]
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