IIT JEE Questions And Answers :: Solutions: part3



IIT JEE : Solutions QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

21.According to Raoults law, the relative lowering of vapour pressure of a solution of non-volatile solute is

equal to mole fraction of solvent
equal to mole fraction of solute
directly proportional to mole fraction of solute
equal to normality of the solution.

22.Isotonic solutions are those which have same

osmotic pressure
vapour pressure
boiling points
velocity

23.For dilute solutions, Raoults law states that

the relative lowering in vapour pressure is equal to the mole fraction of the solute
the relative lowering in vapour pressure is equal to the amount of solvent in the solution
the vapour pressure of the solution is proportional to that of the solvent
lowering of vapour pressure is equal to the mole fraction of the solution

24.A crystal of blue vitriol is placed in its saturated solution. Which of the following observations would you expect to make provided the temperature is constant?

A super � saturated solution will be formed
The crystals will be dissolved
No change will occur
Crystals will separate out

25.The molarity of 6% (W/V) solution of acetic acid is

0.01 M
0.1 M
1 M
0.5 M.

More Solutions QUESTIONS AND ANSWERS available in next pages

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