Sorption and desorption: definitions and examples

This type of question, asked 3 times: May 2021 S1, 19 Apr 2025 S2, 13 May 2026 S1. All 3 questions below, oldest first.

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Question 1
May 2021 S1
69 $The process by which sites of adsorbent are made free so that more adsorbate can occupy them is called$
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Question 2
19 Apr 2025 S2
80 $Identify example of sorption from following.$
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Question 3
13 May 2026 S1
30 $The phenomenon in which adsorption and absorption take place simultaneously is called$
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