Pure water boils at $100^\circ\text{C}$ under normal atmospheric pressure. What happens to its boiling point…

Pure water boils at $100^\circ\text{C}$ under normal atmospheric pressure. What happens to its boiling point if a spoonful of common salt is added to it?
  1. Boiling point decreases below $100^\circ\text{C}$
  2. Boiling point increases above $100^\circ\text{C}$
  3. Boiling point remains exactly $100^\circ\text{C}$
  4. Water loses its ability to boil

Solution

Adding a non-volatile solute like common salt raises the boiling point of pure water above $100^\circ\text{C}$.

Asked in: Homi Bhabha Practice

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