Question

    Which of following group of plant nutrients is as structural elements?

    A Nitrogen, Phosphorus and Potassium Correct Answer Incorrect Answer
    B Calcium, Magnesium and Sulphur Correct Answer Incorrect Answer
    C Carbon, Hydrogen and Oxygen Correct Answer Incorrect Answer
    D Zinc, Iron and Manganese Correct Answer Incorrect Answer

    Solution

    C, H and O are non-ionic elements called structural elements. They are obtained from CO2and H2O that help in building the bulk dry mass (biomass) of the plant. 

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