11.

Element X is a metal with a valency 2. 
Element Y is a non-metal with a valency 3. 

If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.

Element X is a metal with a valency 2. 
Element Y is a non-metal with a valency 3. 

Write two applications of electrolysis in which the anode diminishes in mass.

If HX is a weak acid, what particles will be present in its dilute solution apart from those of water? 

Cations are formed by ...........(loss/gain) of electrons and anions are formed by ........... (loss/gain) of electrons.

What ions must be present in a solution used for electroplating a particular metal? 

Explain how electrolysis is an example of redox reaction?

A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solutions:-

Write equations for:-
The action of hot, concentrated sodium hydroxide on chlorine.

Write equations for:-
The reactions of chlorine with excess of ammonia.

Write equations for:-
The action of chlorine with slaked lime.