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Absorption of hydrogen on a metal surface is known as __________

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in Chemistry – Class 11 by (148k points)
Absorption of hydrogen on a metal surface is known as __________

(a) adsorption

(b) occlusion

(c) absorption

(d) emission

This question was addressed to me by my college professor while I was bunking the class.

The origin of the question is Dihydrogen as a Fuel in chapter Hydrogen of Chemistry – Class 11

1 Answer

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The correct answer is (b) occlusion

Explanation: Occlusion is nothing but the absorption of hydrogen at a metal surface which is a primary cause of reduction, hydrogenation, etc. As the temperature increases, occlusion decreases i.e. they are dependent on each other.

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