Question

Which of the following can adsorb large volume of hydrogen gas?

• A. Colloidal solution of $Pd$
• B. $Ni$
• C. $Fe(OH{)}_3$
• D. $Pt$

Answer 1

The correct option is A Colloidal solution of $Pd$

Colloidal solution of palladium can adsorb largest volume of hydrogen gas as the surface area of palladium is maximum in its colloidal solution. Higher is the surface area of catalyst, larger will be the volume of hydrogen adsorbed.