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Which of the following statement is not correct?

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a
Physical adsorption is due to vander Waals ,forces
b
Physical adsorption is irreversible
c
chemical adsorption increases with increase in temperature upto certain limit than decreases
d
Enthalpy of adsorption (|∆HI) for a chemical adsorption is greater than that of physical adsorption

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detailed solution

Correct option is B

Physical adsorption is reversible in nature

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