alleryFreezing-point depression and elevation are colligative properties: depend on:
ASolute mass only
BNumber of solute particles, not their chemical identity
CColor
DNature of solute
Answer & Solution
Correct answer: B. Number of solute particles, not their chemical identity
**Colligative:** ΔT_b, ΔT_f, π, ΔP all depend on the NUMBER of dissolved particles (not their type).
Why we use i (van't Hoff factor) — accounts for dissociation.
Particles of any kind, large or small, contribute equally per particle.
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