A) Positively charged ions
B) Negatively charged ions
C) A disproportionate mixture of negatively charged ions
D) Particles carrying no charge
Correct Answer: B
Solution :
Phosphorus is absorbed by the plants from the soil in the form of phosphate ions \[{{H}_{2}}PO_{4}^{-}\] and \[HPO_{4}^{2-}\] and nitrogen is absorbed by the plants in the form of nitrate ions\[(NO_{3}^{-})\].
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