During the electrolysis of an aqueous salt solution, the `pH` in the space near one of the electrode was increased and the other one was decreased. The salt solution was:

During electrolysis of aquesos solution of a slat pH in the space near one of the elctrode is increased which of the following salt solution was electrolysed ?

During the electrolysis of aqueous nitric acid solution using Pt electrodes

During the electrolysis of aqueous solution of sodium chloride, pH of the electrolyte

In the electrolysis of an aqueous potassium sulphate solution, the Ph of the solution in the space near an electrode increased. Which pole of the current source is the electrode connected to ?

During the electrolysis of the aqueous solution of copper sulphate using Pt electrode, the reaction taking place at anode electrode is