Question

Which of the following can adsorb largest volume of hydrogen gas.

• A. Finely divided platinum
• B. Finely divided nickel
• C. Colloidal palladium
• D. Colloidal platinum

Answer 1

Answer: (C)

Colloidal palladium

Answer 2

Order of adsorption of $H_{2}$ (occlusion) is

Colloidal Palladium > Palladium > Platinum > Gold > Nickel