The main constituent of bones is ______________________?
Correct answer: B. Ca3(PO4)2
- A. CaF2
- B. Ca3(PO4)2
- C. CaCO3
- D. CaCl2
Explanation
The mineral component of bone is commonly represented approximately as tricalcium phosphate, Ca₃(PO₄)₂, although actual bone mineral is mainly hydroxyapatite. The other calcium salts listed are not the principal structural mineral of bone.
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