Vapour pressure of a solvent containing non-volatile solute:
Correct answer: B. Less than the vapour pressure of solvent
- A. More than the vapour pressure of a solvent
- B. Less than the vapour pressure of solvent
- C. Equal to the vapour pressure of solvent
- D. None of these
Explanation
Addition of non-volatile solute always lowers the vapour pressure.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Solutions and Colloids
Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
Practise Solutions and Colloids
119 free Solutions and Colloids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Solutions and Colloids questions
Binary liquid mixtures which exhibit positive deviations from Raoult's law boil at ..... Temperature than the expected b.pt :
Equimolar solutions in the same solvent have:
For which of the following parameters the structural isomers C2H5OH and CH3OCH3 would be expected to have the same values? (Assume ideal behavour)
Assuming each salt to be 90% dissociated, then which of the following will have highest osmotic pressure?
The osmotic pressure of a solution can be accurately measured in the shortest possible time by:
At high altitudes the boiling point of water decreases because: