Part 4

Solutions QUESTIONS AND ANSWERS

IIT JEE : Solutions QUESTIONS AND ANSWERS :: part1 : 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.The weight of silver nitrate required to prepare 60 ml of 0.03 gm per ml of AgNO will be

1.8 gm

0.18 gm

2.5 gm

9 gm

22.The number of moles of NaCl in 3 litres of the 3 M solution is

23.The vapour pressure of pure liquid A is 70 torr at 27 degreeCentigrade. It forms an ideal solution with another liquid B. The mole fraction of B is 0.2 and total pressure of the solution is 84 torr at 27degreeCentigrade. The vapour pressure of pure liquid is

140 torr

90 torr

112 torr

28 torr

24.The osmotic pressure of a solution is increased if

number of molecules of solute is increased

temperature is increased

volume is increased

None of the above

25.The depression in freezing point method is used for the molecular mass determination of

volatile and soluble solvent

non-volatile and insoluble solvent