Question

$2g$ 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
• D. Boiling point decreases and freezing point increases

Answer 1

The correct option is C Boiling point increases and freezing point decreases

Sugar $+$ water mixture an eg. of non-ideal solution with negative deviation as interaction between solute and solvent is more than interaction between individual component. So, Boiling point of mixture increases and freezing point of solution decreases.