Question:
Which of the following is false regarding adsorption?
Which of the following is false regarding adsorption?
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Adsorption is a surface phenomenon, so it depends strongly on surface area.
Updated On: Nov 13, 2026
Concentration of adsorbate is high only at the surface of adsorbent.
It is dependent on temperature and pressure.
It is accompanied by evolution of heat.
It is independent of surface area.
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
Adsorption is the accumulation of a substance on the surface of another, and it is exothermic.
Step 2: Check each statement
(A) true: concentration is high only at the surface.
(B) true: it depends on temperature and pressure.
(C) true: heat is evolved (exothermic).
(D) false: adsorption increases with surface area.
Step 3: Conclusion
Therefore, the false statement is that adsorption is independent of surface area.
Final Answer:
The false statement is that adsorption is independent of surface area. \[ \boxed{\text{(D) }\text{It is independent of surface area.}} \]
Adsorption is the accumulation of a substance on the surface of another, and it is exothermic.
Step 2: Check each statement
(A) true: concentration is high only at the surface.
(B) true: it depends on temperature and pressure.
(C) true: heat is evolved (exothermic).
(D) false: adsorption increases with surface area.
Step 3: Conclusion
Therefore, the false statement is that adsorption is independent of surface area.
Final Answer:
The false statement is that adsorption is independent of surface area. \[ \boxed{\text{(D) }\text{It is independent of surface area.}} \]
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