The recommended concentration of fluoride ion in drinking water is up to 1 ppm as fluoride ion is required to make teeth enamel harder by converting (3Ca3 (PO4)2 Ca(OH)2) to
Sahay Sir > Question Answers > The recommended concentration of fluoride ion in drinking water is up to 1 ppm as fluoride ion is required to make teeth enamel harder by converting (3Ca3 (PO4)2 Ca(OH)2) to
The recommended concentration of fluoride ion in drinking water is up to 1 ppm as fluoride ion is required to make teeth enamel harder by converting (3Ca3 (PO4)2 Ca(OH)2) to The recommended concentration of fluoride ion in drinking water is up to 1 ppm as fluoride ion is required to make teeth enamel harder by [...]