Answer: C. high melting point
Explanation:
Physical property is defined as the property of a substance which becomes evident during physical changes. Example: melting point
Chemical property is defined as the property of a substance which becomes evident during chemical changes. Example: Reactivity with other substances , acidity, basicity , chemical composition
Acidity is the number of \(OH^-\) ions a substance releases on dissolving in water.
Basicity is the number of \(H^+\) ions a substance releases on dissolving in water.
Thus high melting point is the physical property of halite.
