MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistrySolutionsColligative Properties of Dilute Solutions
2g of sugar is added to one litre of water to give sugar solution. What is the effect of addition of sugar on the boiling point and freezing point of water?
A.Both boiling point and freezing point increase.
B.Both boiling point and freezing point decrease.
C.Boiling point increases and freezing point decreases.✓ Correct
D.Boiling point decreases and freezing point increases.
Explanation
When a nonvolatile solute added to a solvent the V.P of the resulting solution decrease, due to this there is an elevation in the B.P. and depression in F.P. i.e., The liquid range of the solvent increase. Relative lowering of vapour pressure