Adsorption and Colloids — Flashcards
Maharashtra Board · Class 11 · Chemistry
22 flashcards for Adsorption and Colloids (Maharashtra Board Class 11 Chemistry) to test yourself on key terms and facts.
Interactive on Super Tutor
Studying Adsorption and Colloids? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
Free trial, no card needed.
What is adsorption? How does it differ from absorption?
Answer
Adsorption is a surface phenomenon where molecules of a gas or liquid accumulate on the surface of a solid or liquid due to unbalanced forces at the surface. Key differences: - Adsorption: Surface ph…
Define adsorbent and adsorbate with examples.
Answer
Adsorbent: The material on whose surface adsorption takes place Adsorbate: The substance that gets adsorbed on the adsorbent surface Examples: - Activated charcoal (adsorbent) adsorbing methylene blu…
Compare physisorption and chemisorption in terms of forces involved and heat of adsorption.
Answer
Physisorption: - Forces: Weak van der Waals forces - Heat of adsorption: Low (20-40 kJ/mol) - Similar to heat of condensation - Reversible process Chemisorption: - Forces: Chemical bonds (covalent/io…
List five factors affecting adsorption of gases on solids and explain one in detail.
Answer
Five factors: 1. Nature of adsorbate (gas) 2. Nature of adsorbent 3. Surface area of adsorbent 4. Temperature 5. Pressure of gas Detailed explanation - Nature of adsorbate: Gases with high critical t…
State and explain the Freundlich adsorption isotherm equation.
Answer
Freundlich Equation: x/m = kP^(1/n) Where: - x = mass of gas adsorbed - m = mass of adsorbent - P = equilibrium pressure - k, n = constants (depend on nature of adsorbate, adsorbent, temperature) Lo…
What is catalysis? Distinguish between homogeneous and heterogeneous catalysis with examples.
Answer
Catalysis: Process where a substance (catalyst) increases reaction rate without undergoing permanent chemical change. Homogeneous Catalysis: - Reactants and catalyst in same phase - Examples: • H⁺…
Explain the adsorption theory of heterogeneous catalysis with five steps.
Answer
Five steps of heterogeneous catalysis: 1. Diffusion: Reactants move toward catalyst surface 2. Adsorption: Reactant molecules adsorb on catalyst surface 3. Intermediate formation: Chemical reaction o…
What are zeolites? How do they show shape selective catalysis?
Answer
Zeolites: Aluminosilicates with 3D network structure where some Si atoms are replaced by Al atoms, creating microporous structure. Shape Selective Catalysis: - Reactions depend on size and shape of r…
+14 more flashcards
Practise AllFrequently Asked Questions
What are the important topics in Adsorption and Colloids for Maharashtra Board Class 11 Chemistry?
How many flashcards are available for Adsorption and Colloids?
How should I revise Adsorption and Colloids for Class 11 exams?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Adsorption and Colloids
For serious students
Get the full Adsorption and Colloids chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Maharashtra Board Class 11 Chemistry. Free to start, no card needed.