JEE · NEET Previous Year Question
Which among the following colligative properties is useful to determine molar masses of very expensive solutes?
Topic: JEE PYQ
Answer: B. Full step-by-step solution below.
- AFreezing point depression
- BOsmotic pressure
- CVapour pressure lowering
- DBoiling point elevation
Correct answer: B
Solution
(b) : As compared to other colligative properties, the magnitude of osmotic pressure is large even for very dilute solutions. The osmotic pressure can be measured at a suitable constant temperature and the molar masses can be measured far more accurately. Therefore, osmotic pressure is more useful to determine molar masses of very expensive solutes.More Thermodynamics PYQs
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