Liquid Solution · Chemistry · WB JEE
MCQ (Single Correct Answer)
1
The correct order of boiling point of the given aqueous solutions is
WB JEE 2024
2
A solution containing 4g of polymer in 4.0 litre solution at 27$$^\circ$$C shows an osmotic pressure of 3.0 $$\times$$ 10$$^{-4}$$ atm. The molar mass of the polymer in g/mol is
WB JEE 2023
3
Pick the correct statement.
WB JEE 2022
4
When 20 g of naphthoic acid (C11H8O2) is dissolved in 50 g of benzene, a freezing point depression of 2K is observed. The van't Hoff factor (i) is [Kf = 1.72 K kg mol$$-$$1]
WB JEE 2021
5
Equal masses of ethane and hydrogen are mixed in an empty container at 298 K. The fraction of total pressure exerted by hydrogen is
WB JEE 2020
6
Kf (water) = 1.86 K kg mol-1. The temperature at which ice begins to separate from a mixture of 10 mass % ethylene glycol is
WB JEE 2020
7
Equal weights of ethane and hydrogen are mixed in an empty container at 25$$^\circ$$C. The fraction of total pressure exerted by hydrogen is
WB JEE 2018
8
Assuming the compounds to be completely dissociated in aqueous solution, identify the pair of the solutions that can be expected to be isotonic at the same temperature.
WB JEE 2017
9
If p$$^\circ$$ and p are the vapour pressure of the pure solvent and solution and n1 and n2 are the moles of solute and solvent respectively in the solution then the correct relation between p and p$$^\circ$$ is
WB JEE 2016