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 :

Question

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 : (A) [CaF2]  (B) [3(CaF2).Ca(OH)2] (C) [3Ca3(PO4)2.CaF2] (D) [3 Ca(OH)2 .CaF2]

Tardigrade Admin · Accepted Answer

The Fluoride ion converts [3 Ca 3( PO 4)2 ⋅ Ca ( OH )2] to [3 Ca 3( PO 4)2 ⋅ CaF 2]. The reaction can be given as follow: beginarrayl [3 Ca 3( PO 4)2 ⋅ Ca ( OH )2]+2 F - arrow[3 Ca 3( PO 4)2 ⋅ CaF 2] text drinking water upto 1 ppm text harder teeth enamel endarray

Q. The recommended concentration of fluoride ion in drinking water is up to $1 pp m$ as fluoride ion is required to make teeth enamel harder by converting $[3 C a_{3} (P O_{4})_{2} . C a (O H)_{2}]$ to :

$[C a F_{2}]$

$[3 (C a F_{2}) . C a (O H)_{2}]$

$[3 C a_{3} (P O_{4})_{2} . C a F_{2}]$

$[3 {C a (O H)_{2}} . C a F_{2}]$

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

[CaF2​]

[3(CaF2​).Ca(OH)2​]

[3Ca3​(PO4​)2​.CaF2​]

[3{Ca(OH)2​}.CaF2​]

The Fluoride ion converts [3Ca3​(PO4​)2​⋅Ca(OH)2​] to [3Ca3​(PO4​)2​⋅CaF2​]. The reaction can be given as follow: [3Ca3​(PO4​)2​⋅Ca(OH)2​]+2F−→[3Ca3​(PO4​)2​⋅CaF2​] drinking water upto 1ppm harder teeth enamel ​

Q. The recommended concentration of fluoride ion in drinking water is up to $1 pp m$ as fluoride ion is required to make teeth enamel harder by converting $[3 C a_{3} (P O_{4})_{2} . C a (O H)_{2}]$ to :

$[C a F_{2}]$

$[3 (C a F_{2}) . C a (O H)_{2}]$

$[3 C a_{3} (P O_{4})_{2} . C a F_{2}]$

$[3 {C a (O H)_{2}} . C a F_{2}]$