46. Which among the following metals provides amphoteric oxide ? A.Sodium B.Silver C.Aluminium D.Calcium
Answer: Option C Solution: In chemistry, an amphoteric compound is a molecule or ion that can react both as an acid and as a base. Many metals (such as copper, zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide.
