Home/Chemistry Mcqs/Chemistry Solutions Online Mcqs Test

Chemistry Solutions Online Mcqs Test

Malik TahirLast Updated: October 14, 2025

Important Chemistry Solutions Question and Answer

Total Questions:	64
Time Allowed:	30 Minutes
Total Marks:	64
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Chemistry Test ECAT Test MDCAT Test FPSC/PPSC/SPSC/KPPSC/BPSC/AJKPSC/NTS Chemistry Interview Question Answer

Chemistry Solutions Practice Test Online With Explanation

Please wait...

Page 1 of 3

Chemistry

1. Number of moles of solute dissolved in 1 kg of solvent is called

Mole fraction

Formality

Molality

Molarity

2. The vapour pressure of a liquid in a closed container depends upon

Nature of non ovolatile

Amount of liquid

Surface area of the container

Temperature

3. Which has the minimum freezing point?

One molal CaCI₂

One molal KCl Solution

One molal urea solution

One Molal NaCl

4. Which of the following unit of concentration is independent of temperature?

All

Mole fraction

Molarity

Molality

5. The movement of solvent molecules through a semipermeable membrane is called

Osmosis

Electrophoresis

Electrolysis

Cataphoresis

6. Which of the following solutions of H₂SO₄ is more concentrated?

None of these

1 Molar solution

1 mole solution

1 normal solution

7. Calculate the normality of a solution that contains 4.5 g of (COOH)₂ in 3000 mL of solution? (Assume the (COOH)₂ is to be completely neutralized in an acid-base reaction.)

0.033 N

0.045 N

0.066 N

0.090 N

8. Which of the following liquid pairs shows a positive deviation from Raoult’s law?

Water – nitric acid

Water – hydrochloric acid

Benzene – methanol

Acetone – chloroform

9. Every sample of matter with uniform properties and fixed composition is called

Phase

Solvent

Solute

Solution

10. For dilute solution, Raoult’s law states that:

The relative lowering of vapour pressure is proportional to amount of solute

The vapor pressure of the solution is equal to mole fraction of the solvent

The lowering of vapor pressure is equal to the mole fraction of solute in solution

The relative lowering of vapour pressure is equal to mole fraction of solute

11. Which of the following is not a colligative property?

Osmotic pressure

Elevation of boiling point

Density

Depression of freezing point

12. A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statement is correct regarding the behavior of the solution?

The solution is non-ideal, showing – ve deviation from Raoult’s Law

The solution is non-ideal, showing +ve deviation from Raoult’s Law

The solution formed is an ideal solution

n-heptane shows +ve deviation while ethanol shows – ve deviation from Raoult’s Law

13. In azeotropic mixture showing positive deviation from Rault’s law, the volume of the mixture is

Slightly less than the total volume of the components

Equal to the total volume of the components

None of these

Slightly more than the total volume of the components

14. At 25°C, the highest osmotic pressure is exhibited by 0.1 M solution of

Urea

Glucose

KCl

CaCl₂

15. The molal depression constant depends upon

Vapour pressure of solution

Nature of solute

∆H

Nature of solvent

16. The compounds in which water molecules are added are called

Coordinate compounds

Hydrates

Double salts

Complexes

17. Saturated solution of NaCl on heating becomes

Super saturated

Unsaturated

Remains saturated

None

18. The liquid pair which is not completely miscible

Phenol and water

CH₃OH and water

Alcohol and water

Benzene and toluene

19. Osmotic pressure of a solution increases by

None of these

Increasing the number of molecules of the solute

Increasing the volume

Decreasing the temperature

20. The component of solution which is in smaller amount is called

Ion

Solvent

Phase

Solute

21. Which of the following is an example of liquid solute and gas solvent?

Dust particles in smoke

Opals

Fog

Paints

22. The solution which does not boil at a particular temperature

Zeotropic solution

Azeotropic solution

Non-ideal solution

Ideal solution

23. Which of the following is not a colligative property?

Elevation of boiling point

Osmotic pressure

Depression in freezing pint

Modification of refractive index

24. Which of the following in not a colligative property?

Freezing point

Osmotic pressure

Elevation of polling point

Lowering of vapour pressure

25. If ionic product of solution is greater than solubility products, the solution is

Supersaturated

None of these

Unsaturated

Saturated

Page 2 of 3

26. Which of the following are the conditions of colligative properties?

Non-electrolyte solute

Dilute solution

All of these

Non-volatile solute

27. The osmotic pressure of solution increases if

Volume is increased

Number of solute molecules are increased

Solution constant is increased

Temperature is decreased

28. In partially miscible liquids the two layers are

No layer formation takes place

Normal solution of each other

Unsaturated solution of each other

Saturated solution of each other

29. A solution of glucose is 10%. The volume in which 1 g mole of it is dissolved will be

900 cmn³

1.8 dm³

200 cm³

1 dm³

30. If the volume of solution is equal to sum of volumes of its all components then the solution

Both b & c

Will be non-ideal solution

Will show deviations from Raoults law

Will be an ideal solution

31. The molal elevation constant is the ratio of the elevation in boiling point to

Mole fraction of solute

Molality

Mole fraction of Solvent

Molarity

32. Number of moles in 1 kg of solvent is called

Mole fraction

Molality

Molarity

Normality

33. Units of molarity are

None

Kg/lit

Mol/lit

Gm/lit

34. Which of the following will form an ideal solution?

C₆H₆ and CCI₄

C₂H₅OH and H₂O

H₂O and HBr.

CHCI₃ and CH₃ 100 CH₃

35. What happens when isotonic solution of A (mol. Wt. 342) and B (mol. wt 60) are put in to communication through semipermeable membrane?

Change in temperature of solutions takes place

No transference of solvent from solution A to that of B takes place

Transference of solvent from solution A to that of B take place

Transference of solvent from solution B to that of A takes place

36. In cold countries ethylene glycol is added to water in radiators of cars during winter, It results in

Lowering in freezing point

Reducing viscosity

Reducing specific heat

Lowering in B.P

37. The freezing point of 1 molal NaCl solution assuming NaCl to be 100% dissociated in water in

-3.72°C

+3.72°C

-1.86°C

+1.86°C

38. The concentration units independent of temperature would be

Mass-volume percent

Molarity

Normality

Molality

39. Which of the following is a colligative property?

Osmotic pressure

Sublimation temperature

Melting point

Freezing point

40. Homogeneous mixture of two or more than two compounds is called

Solution

Ion

Radical

Compound

41. Maximum F.P falls in

Naphthalene

Camphor

Water

Benzene

42. The process of osmosis was first discovered by

Dutrochet

Traube

Pfeffer

Nollet

43. Azeotropic mixture of two liquids boil at a lower temperature than either of them, when

It is metastable

It is saturated

It shows negative deviation from Rault’s law

It show positive deviation from Rault’s law

44. The solution which distils over with change in composition

Ideal solution

Azeotropic solution

Zeotropic solution

Non-ideal solution

45. Solution which distill without change in composition or temperature are called

Ideal

Super saturated

Amorphous

Azeotropic mixture

46. The lowest vapour pressure is exerted by

Ethanol

Methanol

Water

Chloroform

47. A solution of two components is called

Standard solution

Original solution

Binary solution

Dilute solution

48. Depression in freezing point is directly to

Molality of solution

Molarity of solution

Molality of solvent

Molarity of solvent

49. The molal depression constant depends upon

Nature of solvent

∆H solution

Nature of solute

Vapour pressure of solution

50. Which of the following is not a colligative property?

Lowering of vapour pressure

Osmatic pressure

Freezing point

Elevation of boiling point

Page 3 of 3

51. Which inorganic precipitate acts as semipermeable membrane?

Copper ferrocyanide

Barium oxalate

Nickel phosphate

Calcium sulphate

52. Solution with maximum concentration of solute at given temperature is called

Unsaturated solution

Saturated solution

Super saturated solution

Dilute solution

53. In cold countries ethylene glycol is added to water in radiators of cars during winter. It results in

Reducing viscosity

Lowering in b.pt.

Lowering in freezing pt

Reducing specific heat

54. The relative lowering of vapour pressure is directly proportional to molality if the solution is

Dilute

Saturated solution

Concentrated

All of these

55. Beckmann’s apparatus is used to measure

Temperature

B.P elevation

Depression in F.P

Pressure

56. Which of the following are the conditions of colligative properties?

Volatile solute

Solute non-electrolyte

All

Dilute solution

57. Isotonic solutions have same

None of these

Molality

Normality

Molar concentration

58. Solution of Na2SO4 will be

Acidic

Basic

More acidic

Neutral

59. A homogeneous mixture of two or more than two chemical substances is called

Solute

Solvation

Solvent

Solution

60. According to Raoult’s law, the relative lowering of vapour pressure is equal to

Molecular weight of the solvent

Pressure of the atmosphere

More fraction of solvent

The mole fraction of Solute

61. Which one will from an ideal solution?

CHCI₃ and CH₃COOCH₃

H₂O and HBr.

C₂H₅OH and H₂O

C₆H₆ and CCI₄

62. How many equivalents of phosphoric acid are contained in 300 mL of 4.00 M phosphoric acid? (Assume the acid is to be completely neutralized by a base).

0.600 eq

2.40 eq

1.20 eq

3.60 eq

63. 10ml of alcohol dissolve in 90ml of water unit of concentration used is

% v/w

% w/w

% v/v

% w/v

64. Which is not a colligative property?

Elevation of boiling point

Osmotic pressure

Depression of freezing point

Lowering of vapour pressure

You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.

Basic Concepts of Chemistry Online Mcqs Test
Chemistry Industrial Chemistry Online Mcqs Test
Chemistry Aldehydes and Ketones Online Mcqs Test
Chemistry Alcohols And Phenols Online Mcqs Test
Chemistry Alkyl Halides Online Mcqs Test
Chemistry Macro Molecules Online Mcqs Test
Chemistry Carboxylic Acid Online Mcqs Test
Chemistry of Hydrocarbons Online Mcqs Test
Chemistry Transition Elements Online Mcqs Test
Chemistry Reaction Kinetics Online Mcqs Test

Malik TahirLast Updated: October 14, 2025

Chemistry Solutions Online Mcqs Test

Important Chemistry Solutions Question and Answer

Chemistry Solutions Practice Test Online With Explanation

Chemistry

Related Posts

Malik Tahir

2 Comments

Leave a Reply Cancel reply