The compound formed when enamel on the surface of the teeth reacts with F- ions

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CaF2

3Ca3(PO4)2.Ca(OH)2

Ca3(PO4)2. CaF2

answer is D.

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Detailed Solution

Ca3PO42.CaOH2Hydroxy apatite →2F- Ca3PO42.CaF2Fluoroapatite

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