Question

Constituents of toothpaste are calcium carbonate, calcium fluoride, phosphate . From the above,which constituent is used to prevent tooth decay

Answer 1

calcium carbonate.....

Answer 2

$\textbf{Calcium Carbontae }$is that constituent of tooth paste which prevents tooth decay.

Actually, they are basic in nature and thus performs neutralisation reaction with the food or acid trapped in teeth.

This helps in preventing tooth decay.