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. |
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