Question

Assertion : The vapour pressure of an aqueous solution of sucrose is less than $1.013$ bar at $373.15\, K$.
Reason : Vapour pressure of water is $1.013$ bar at $373.15\, K$.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (B)

Vapour pressure of solution containing non-volatile solute is less than that of pure solvent.