WAEC - Chemistry (2002 - No. 6)
When concentrated sodium chloride solution is electrolysed using inert electrodes the products are?
oxygen and hydrogen
hydrogen and oxygen
sodium and oxygen
soduim hydroxide, hydrogen and chlorine
Vysvetlenie
When concentrated NaCl solution undergoes electrolysis, sodium hydroxide and hydrogen are produced at the cathode while chlorine is produced at the anode.