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Surface Chemistry
NEET Chemistry • 10 questions • Free on ExamBattle
Practice Questions
Q1
Adsorption is a _____ process:
- A. Endothermic
- B. Exothermic
- C. Neither
- D. Depends on adsorbent
Q2
Physisorption differs from chemisorption in that physisorption:
- A. Forms new chemical bonds
- B. Involves van der Waals forces (weak) and is reversible
- C. Is irreversible
- D. Has higher enthalpy change
Q3
Freundlich adsorption isotherm at moderate pressures gives x/m ∝ ?
- A. P
- B. P^(1/n) where n > 1
- C. 1/P
- D. P²
Q4
Tyndall effect is used to distinguish:
- A. Ionic from covalent compounds
- B. Colloids from true solutions
- C. Acids from bases
- D. Homogeneous from heterogeneous mixtures
Q5
Coagulation of a negative colloid is most effectively done by:
- A. Na⁺ ion
- B. Al³⁺ ion
- C. Cl⁻ ion
- D. SO₄²⁻ ion
Q6
The process of digestion of food is aided by:
- A. Inorganic catalysts only
- B. Enzymatic (biochemical) catalysis
- C. Heterogeneous catalysis
- D. Autocatalysis
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