chemistry

[hassam]

what happens to the universal indicator solution at each electrodes when electrolysis of conc. aques sodium chloride is carried out?????

plzz tell

 

[CaptainDanger]

Hydrogen released at Cathode... So hydroxide ions remain there which changes colour to Blue...

Chlorine at Anode... So colour changes to Red and the indicator is bleached...

Or bubbles are formed in both cases...