Which of the following ions is encouraging for the formation of algae in water?

S O_{4}^{2 -}

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P O_{4}^{3 -}

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A s O_{4}^{3 -}

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C O_{3}^{2 -}

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Solution

The correct option is A $P O_{4}^{3 -}$
Explosive growth of plants and algae is a response to the addition of excess nutrients, mainlyphosphates, which induces, the decaying of which consumes oxygen from the water causing water pollution. Phosphates are amongst the major nutrients that is required by plants for growth. A phosphate (PO₄^3-) is an inorganic chemical and a salt of phosphoric acid.

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(II)

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Question 13
Write the molecular formulae of all the compounds that can be formed by the combination of following ions
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