The correct answer is (d) Ca₃(PO₄)₂.
Calcium phosphate is composed of three calcium (Ca²⁺) ions and two phosphate (PO₄³⁻) ions, forming the chemical formula Ca₃(PO₄)₂. It is an important component of bones and teeth.
Class 9th Science NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.
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(d) Ca has the valency 2 and phosphate has the valency 3. Therefore, calcium phosphate has the formula Ca₃(PO₄)₂.
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