Hardening of leather in tanning industry is based on :
- AElectrophoresis
- BElectro-osmosis
- ✓Mutual coagulation
- DTyndall effect
Answer: C.
View full solution →Question types
Surface Chemistry question types
54 questions across 5 question groups — pick any mix to generate a Chemistry paper with step-by-step answer keys.
54
Questions
5
Question groups
5
Question types
01
M.C.Q (1 Marks)
30 Q→021 Marks Question
16 Q→032 Marks Questions
1 Q→043 Marks Question
3 Q→055 Marks Questions
4 Q→Sample Questions
Surface Chemistry questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Which of the following is a lyophilic colloid?
- AMilk
- ✓Gum
- CFog
- DBlood
Answer: B.
View full solution →According to Freundlich adsorption isotherm :
- ✓$\frac{x}{m}=kp^{1/n}$
- B$\frac{m}{x}=k.p^{1/n}$
- C$xm=kp^{1/n}$
- D$\frac{x}{m}=\frac{k}{p^{1/n}}$
Answer: A.
View full solution →Milk is :
- ✓fat dispersed in water
- Bwater dispersed in fat
- Cwater dispersed in oil
- Dfat dispersed in fat
Answer: A.
View full solution →Tyndall effect is observed in :
- ASolution
- BPrecipitate
- ✓Sol
- DVapours
Answer: C.
View full solution →Why do we add alum to purify water?
Why does bleeding stop by rubbing moist alum?
(a) Why are medicines more effective in colloidal state?
(b) What is difference between an emulsion and a gel?
(b) What is difference between an emulsion and a gel?
What is Brownian movement?
What are the factors which influence the adsorption of a gas on a solid ?
Explain the terms with suitable examples: (1) Gel, (2) Aerosol, and (3) Hydrosol.
Write differences between adsorption and absorption.
(i) What is the role of activated charcoal in gas mask?
(ii) A colloidal sol is prepared by the given method in figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube? How is the sol represented?
(iii) How does chemisorption vary with temperature ?
(ii) A colloidal sol is prepared by the given method in figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube? How is the sol represented?
(iii) How does chemisorption vary with temperature ?
What are lyophobic and lyophilic sols ? Give their chief distinguishing characteristics.
What are the main differences between physical adsorption and chemical adsorption ?
Explain the following terms:
(i) Coagulation
(ii) Electrophoresis
(iii) Tyndall Effect
(iv) Hardy Schulze's Rule
(i) Coagulation
(ii) Electrophoresis
(iii) Tyndall Effect
(iv) Hardy Schulze's Rule
What is adsorption isotherm? Describe the Freundlich adsorption isotherm.
Describe the dispersion methods for preparation of colloidal solution.
Generate a Surface Chemistry paper free
Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.