Question:
Which of the following statements is NOT true about lyophobic colloids?
Which of the following statements is NOT true about lyophobic colloids?
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Lyophobic = “solvent-hating” → difficult to form.
Updated On: May 4, 2026
- These are formed easily by direct mixing of dispersion medium and dispersed phase.
- These are irreversible.
- These are unstable and hence require traces of stabilisers.
- Viscosity of dispersed phase is nearly same as the dispersion medium.
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The Correct Option is A
Solution and Explanation
Concept:
Lyophobic colloids:
• Do not have affinity for dispersion medium
• Are difficult to prepare
• Require special methods
Step 1: Analyze statements.
• (A) Formed easily → FALSE \checkmark
• (B) Irreversible → TRUE
• (C) Need stabilisers → TRUE
• (D) Viscosity similar → TRUE
Step 2: Conclusion. \[ \text{Incorrect statement = (A)} \]
Lyophobic colloids:
• Do not have affinity for dispersion medium
• Are difficult to prepare
• Require special methods
Step 1: Analyze statements.
• (A) Formed easily → FALSE \checkmark
• (B) Irreversible → TRUE
• (C) Need stabilisers → TRUE
• (D) Viscosity similar → TRUE
Step 2: Conclusion. \[ \text{Incorrect statement = (A)} \]
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