Colloids-Multiple Choice Questions Quiz

Interactive MCQs on “Colloids”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What are colloids?

(a) Homogeneous mixtures
(b) Heterogeneous mixtures
(c) Pure substances
(d) Chemical compounds

Question 2: Which of the following is an example of a colloid?

(a) Saltwater
(b) Lemon juice
(c) Milk
(d) Vinegar

Question 3: What is the size range of particles in a colloid?

(a) Microscopic particles
(b) Nanoscopic particles
(c) Macroscopic particles
(d) Molecular particles

Question 4: Which of the following factors affects the stability of colloids?

(a) Particle size
(b) Particle charge
(c) Medium viscosity
(d) All of the above

Question 5: What is the process of separating colloidal particles from a liquid medium called?

(a) Filtration
(b) Distillation
(c) Decantation
(d) Coagulation

Question 6: Which of the following is an example of a gas-in-liquid colloid?

(a) Milk
(b) Mayonnaise
(c) Smoke
(d) Gelatin

Question 7: What is the name for the process by which a colloid settles over time due to the force of gravity?

(a) Sedimentation
(b) Filtration
(c) Agglomeration
(d) Flocculation

Question 8: Which of the following substances is often used as a stabilizing agent in food and cosmetic colloids?

(a) Salt
(b) Sugar
(c) Emulsifier
(d) Vinegar

Question 9: What is the Tyndall effect?

(a) The scattering of light by colloidal particles
(b) The precipitation of colloidal particles
(c) The coagulation of colloids
(d) The sedimentation of colloidal particles

Question 10: Which of the following colloidal systems involves solid particles dispersed in a liquid medium?

(a) Foam
(b) Aerosol
(c) Sol
(d) Emulsion