The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:
Correct answer: D. BaCl2 > NaCl > Sucrose
- A. Sucrose > NaCl > BaCl2
- B. Sucrose > BaCl2 > NaCl
- C. NaCl > BaCl2 > Sucrose
- D. BaCl2 > NaCl > Sucrose
Explanation
Osmotic pressure is a colligative property, and the more the number of particles more the osmotic pressure. π=iCRT Hence, BaCl2>NaCl>Sucrose since the concentration is the same and i for BaCl2 is 3, NaCl is 2 and sucrose is 1.
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
Consider NaCl produced in the equation: FeCl3+ NaOH → Fe(OH)3 + NaCl 175.5g of NaCl was dissolved in water to make a liter of solution, the molarity would be:
An azeotropic mixture of two liquids has a boiling point higher than either of them when it:
The number of moles of solute dissolved per liter of solution is called:
From a mixture of CO2 and H2 gases, CO2 can be separated by passing the mixture through: