Which group of element is not essential for a normal plant?

Potassium, calcium, magnesium

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Iron, zinc, manganese, boron

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Lead, nickel, iodine, sodium

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Magnesium, iron, molybdenum.

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Solution

The correct option is C Lead, nickel, iodine, sodium
Lead, nickel, iodine, sodium are not essential for a normal plant. Iodine is used by marine alga Scenedesumus.Nickel: Enzyme urease uses it to hydrolyse urea by living organisms.

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Choose plant’s micronutrients and macronutrients from the following.

Iron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc. Magnesium, Molybdenum, Phosphorus.

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