1.

Which of the following statements is/are correct ?A. Physical adsorption is multilayer, non-directional, and non-specific.B. On some cases, solvent may be adsorbed in preference to the solute on the surface of the adsorbent.C. Chemical adsorption increases with increases in temperature.D. Due to adsorption, surface energy increases.

Answer» Correct Answer - A::B
(c) is wrong because chemical adsorption first increases and then decreases with increase in temperature.
(d) is wrong because as a result of adsorption, there is a decreases in surface energy. Correct Answer - A::B
(c) is wrong because chemical adsorption first increases and then decreases with increase in temperature.
(d) is wrong because as a result of adsorption, there is a decreases in surface energy.


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