NDA 2019 Chemistry question
Tooth enamel is made up of which one of the following calcium compounds ?
Answer: (D)
Solution
Tooth enamel, the hardest substance in the body, is made of calcium phosphate in the form of hydroxyapatite, .
Tooth enamel is made up of which one of the following calcium compounds ?
Tooth enamel, the hardest substance in the body, is made of calcium phosphate in the form of hydroxyapatite, .