Sodium peroxide upon reacting with___ results in sodium hydroxide and oxygen.
Sodium peroxide upon reacting with water results in sodium hydroxide and oxygen.
2Na2O2+2H2O→4NaOH+O2
A metal salt (M) on reacting with sodium hydroxide forms sodium sulphate and a gelatinous white precipitate of a metal hydroxide. The precipitate is soluble in excess of sodium hydroxide. Identify M.