A 5% solution of cane sugar (mol wt = 342) is isotonic with 1% solution of a substance X. The molecular weight of X is
34.2
171.2
68.4
136.8
The solubility of a solid in a liquid by temperature is explained by
Henry’s law
Le Chateliers principle
Boyle’s law
Dalton’s law
No of moles of solute dissolved in 1 litre of solution is called
Normality
Molarity
Molality
Molefraction
If mass of solute is 2g and the mass of solvent is 18 g, then the mass percentage is
50%
25%
40%
10%
Eg of liquid-liquid solution is
Oxygen dissolved in water
Glucose dissolved in water
Ethanol dissolved in water
Mixture of oxygen and nitrogen gas
When solute is present in trace amount ,then the concentration is expressed in
Mole fraction
Mass percentage
Parts per million
Factors affecting solubility are
Nature of substance
Temperature
Pressure
All the above
The number of moles of the solute per kilogram of the solvent is called
Mass
If vapour pressure of a solution is higher than that of predicted by Raoult's law
+ ve deviation
- ve deviation
Ideal behaviour
Both a and b
