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Which of the following pair does not represents trace elements?

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Boron and manganese

Copper and zinc

Calcium and sulphur

Chlorine and molybdenum

answer is C.

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Detailed Solution

Calcium and sulphur are macronutrients and are required in more quantities than 10 mmole Kg ^–1 of dry matter.

B, Mn, Zn, Cl, Mo, Cu are trace elements or micronutrients required in less quantities less than 10mmole kg^-1 of dry matter.

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