Name :
a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Name : two coloured metal ions.

Name : two colourless metal ions.

A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is

A solution of a metal ion when treated with KI solution gives a red precipitate which dissolves in excess of KI solution to give a colourless solution. Moreover, the solution of the same metal ion on treatment with the solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is

A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution.Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate.The metal ion is:

A solutionf of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution.Moreover, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep-blue crystalline precipitate. The metal ions is

Name a non-metallic oxide which is a reducing agent.

A pair of metals which dissolves in sodium hydroxide solution is

What happens when metal oxides dissolve in water?

A metal whose alloy finds use in the construction of air crafts in the powdered form is added to sodium hydroxide solution. A colourless gas was evolved. After the reaction was over, the solution was colourless Name the salt present in the colourless solution.