Which of the following phenomena occur, when a small amount of acid is added to water? 

(i) Ionisation (ii) Neutralisation

 (iii) Dilution (iv) Salt formation 

In an attempt to demonstrate electrical conductivity through an electrolyte, the alongside apparatus was set up. Which among the following statement(s) is(are) correct?

(i) Bulb will not glow because the electrolyte is not acidic

(ii) Bulb will glow because $\mathrm{NaOH}$is a strong base and furnishes ions for conduction.

(iii) Bulb will not glow because the circuit is incomplete.

(iv) Bulb will not glow because it depends upon the type of electrolytic solution. 

 Match the chemical substances given in Column (A) with their appropriate application given in Column (B).