Q. Which of the following is NOT a colligative property?

निम्नलिखित में से कौन सा एक सहयोगी गुण नहीं है?

A
Vapor pressure lowering
वाष्प दबाव कम होना
B
Boiling point elevation
क्वथनांक उन्नयन
C
Freezing point depression
हिमांक अवनमन
D
Viscosity
चिपचिपापन

Explanation

Colligative properties depend only on the number of solute particles, not their nature.

Vapor pressure lowering, boiling point elevation, and freezing point depression are colligative properties.
Viscosity depends on the nature and interaction of particles, so it is not colligative.

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