(A): Concentration of soluble F^(-) ions in drinking water about 1 ppm is essential. (R) Enamel on teeth is made much harder by converting hydroxyapatile 3Ca_(3)(PO_4)_2Ca(OH)_2 into 3Ca_(3)(PO_4)_2 CaF_2

(A): Concentration of soluble F^(-) ions in drinking water about 1 ppm

1.	(A): Concentration of soluble F^(-) ions in drinking water about 1 ppm is essential. (R) Enamel on teeth is made much harder by converting hydroxyapatile 3Ca_(3)(PO_4)_2Ca(OH)_2 into 3Ca_(3)(PO_4)_2 CaF_2
Answer» Both (A) and (R) are true and (R) is the CORRECT EXPLANATION'of (A) Both (A) and (R) are true and (R) is not the correct explanation of (A) (A) is true but (R) is FALSE (A) is false but (R) is true SOLUTION :Both (A) and (R) are true and (R) is not the correct explanation of (A)