Which of the following element groups is present in plant tissue in less than 10 mmole per kg of dry matter?

Sodium, hydrogen, selenium and cobalt

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Carbon, hydrogen, oxygen and nitrogen

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Magnesium, manganese, molybdenum and nickel

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Zinc, boron, iron and copper

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Solution

The correct option is D Zinc, boron, iron and copper
Micro nutrients (trace elements) are required in very less quantities, less than 10 mmole ${Kg}^{- 1}$ of dry matter.

Iron, manganese, copper, molybdenum, zinc, boron, chlorine and nickel are micronutrients whereas carbon, hydrogen, oxygen, nitrogen, phosphorous, sulphur, potassium,
calcium and magnesium are macronutrients.

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Similar questions

Assertion (A): Macronutrients are generally present in plant tissues in large amounts, in excess of 10 m mole $k g^{- 1}$ of dry matter.

Reason (R): Micronutrients are needed in very small amounts, less than 10 m mole $k g^{- 1}$ of dry matter.

Assertion (A): Macronutrients are generally present in plant tissues in large amounts, in excess of 10 m mole $k g^{- 1}$ of dry matter.

Reason (R): Micronutrients are needed in very small amounts, less than 10 m mole $k g^{- 1}$ of dry matter.

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