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Methylene blue, from its aqueous solutio...

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at `25^(@)C` . For process, the correct statement is

A

the adsorption requires activation at `25^(@)`

B

the adsorption us acompanied by a decreases in enthalpy

C

the adsorption increases with increase of temperature

D

the adsorption is irreversible

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The correct Answer is:
B
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