I. A liquid boils when its saturated vapour pressure is equal to the external pressure
II. Dissolved substances in pure water lead to increase in the boiling point.
III. When the external pressure is increased, the boiling point increases.
IV. Dissolved substances in pure water decrease the boiling point.
A. I, II and III
B. I, II, III and IV
C. I, II and IV
D. II, III and IV
Correct Answer:
Option A – I, II and III
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