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- #National Eligilibility Cum Entrance Test
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Which of the following can adsorb lowest volume of hydrogen gas
Option: 1
Finely divided platinum
Option: 2
Nickel
Option: 3
Colloidal palladium
Option: 4
Gold
Answers (1)
Metals like Pd, Pt, Au etc., have the property of absorbing large quantity of hydrogen at normal or higher temperature. Colloidal Pd can absorb 2950 times its own volume of hydrogen and Pd metal can absorb 900 times its own volume of hydrogen.
This phenomenon is known as the occlusion of hydrogen. the occlusion property of these metals is in order.
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