How are colloids classified?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer:
Option 2: Based on the dispersion medium and the dispersed phase
Explanation:
Colloids are primarily classified based on the dispersion medium and the dispersed phase. On this basis, colloids are categorized into sols, gels, aerosols, emulsions, etc.
Examples:
Solid + Liquid → Sol
Liquid + Gas → Aerosol
This classification helps in understanding the properties and behavior of colloids. Colloid particles are extremely minute and exhibit the Tyndall effect and Brownian motion.
Additional Facts:
Option 1: Color is not a basis.
Option 2: Correct answer.
Option 3: pH is not a basis.
Option 4: Temperature is not a basis.
Potential Questions for Upcoming Exams:
Question: What is the Tyndall effect?
Answer: Scattering of light
Question: What is Brownian motion?
Answer: Irregular motion of particles
Question: What is an emulsion?
Answer: Liquid + Liquid
Question: What is a sol?
Answer: Solid + Liquid