Calcium phosphate is present in tooth enamel, its nature is (1) Acidic (2) Basic (3) Neutral (4) Amphoteric

Answer: (2)

Calcium phosphate is basic salt since it is a source of weak phosphoric acid and a slightly stronger base of calcium hydroxide. Calcium phosphate is a mineral comprising calcium ion (Ca2+) and phosphate ion which is inorganic in nature.  It is present in the crown area of the tooth and also in bones.

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