Answer: Biological catalysts.
- A Inorganic catalysts
- B Biological catalysts
- C Colloidal coagulants
- D Emulsifying agents only
Correct answer: B. Biological catalysts
Explanation: Enzymes are protein-based biological catalysts that are highly specific and effective even in very small amounts.
A typical adsorption isotherm: x/m (mass adsorbed per gram of adsorbent) rises steeply at low pressure, then flattens into a saturation plateau as the adsorbent surface fills up.
Concept context
Explore the chemistry that happens at interfaces, from catalysts that speed up industrial reactions to colloids like milk, smoke, and gels that surround us every day.