Substances such as platinum and palladium are often used for carrying out electrolysis of aqueous solutions due to the following reasons
:
a
.
Chemical inertness
:
Platinum and palladium are chemically inert.
b
.
Adsoptive capacity
:
Platinum and palladium have good absorptive capacity for hydrogen. The adsorbed hydrogen is very active and hence platinum and palladium be pronounced catalytic activity.
