Home/ECAT/ECAT Chemistry Solutions Online Test

ECAT Chemistry Solutions Online Test

Maan AliLast Updated: April 19, 2025

Chemistry Solutions MCQS Online Test

ECAT Chemistry Solutions Chapter Online Test

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:	ECAT Entry Test Chemistry Online Test Interview Questions about Chemisttry All Universities Entrance Test Recruitments Tests

ECAT Chemistry Solutions Test

Please wait...

Page 1 of 3

Chemistry

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

H₂O and HBr.

CHCI₃ and CH₃ 100 CH₃

C₆H₆ and CCI₄

C₂H₅OH and H₂O

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

All

Molality

Molarity

Mole fraction

3. 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

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

The solution formed is an ideal solution

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

4. A solution of two components is called

Standard solution

Original solution

Binary solution

Dilute solution

5. Beckmann’s apparatus is used to measure

Temperature

Depression in F.P

B.P elevation

Pressure

6. The lowest vapour pressure is exerted by

Ethanol

Chloroform

Water

Methanol

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

Electrolysis

Electrophoresis

Osmosis

Cataphoresis

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

Ideal

Azeotropic mixture

Amorphous

Super saturated

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

Solute non-electrolyte

Dilute solution

All

Volatile solute

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

Will be an ideal solution

Will show deviations from Raoults law

Both b & c

Will be non-ideal solution

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

Nature of non ovolatile

Temperature

Surface area of the container

Amount of liquid

12. The process of osmosis was first discovered by

Traube

Dutrochet

Nollet

Pfeffer

13. Which of the following is a colligative property?

Sublimation temperature

Melting point

Osmotic pressure

Freezing point

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

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

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

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

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

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

Double salts

Coordinate compounds

Hydrates

Complexes

16. The liquid pair which is not completely miscible

Benzene and toluene

Alcohol and water

Phenol and water

CH₃OH and water

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

Mole fraction

Formality

Molality

Molarity

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

Normality

Mole fraction

Molarity

Molality

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

Paints

Opals

Dust particles in smoke

Fog

20. Saturated solution of NaCl on heating becomes

Super saturated

Remains saturated

None

Unsaturated

21. The molal depression constant depends upon

Vapour pressure of solution

Nature of solute

∆H

Nature of solvent

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

Mole fraction of Solvent

Molality

Mole fraction of solute

Molarity

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

It shows negative deviation from Rault’s law

It is saturated

It show positive deviation from Rault’s law

It is metastable

24. The concentration units independent of temperature would be

Molality

Molarity

Mass-volume percent

Normality

25. Osmotic pressure of a solution increases by

Increasing the number of molecules of the solute

Increasing the volume

None of these

Decreasing the temperature

Page 2 of 3

26. Which is not a colligative property?

Depression of freezing point

Elevation of boiling point

Osmotic pressure

Lowering of vapour pressure

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

Elevation of boiling point

Depression of freezing point

Density

Osmotic pressure

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

200 cm³

1 dm³

1.8 dm³

900 cmn³

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

Acetone – chloroform

Water – nitric acid

Water – hydrochloric acid

Benzene – methanol

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

The mole fraction of Solute

More fraction of solvent

Pressure of the atmosphere

Molecular weight of the solvent

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

Reducing viscosity

Lowering in freezing point

Reducing specific heat

Lowering in B.P

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

Freezing point

Lowering of vapour pressure

Elevation of boiling point

Osmatic pressure

33. Which inorganic precipitate acts as semipermeable membrane?

Calcium sulphate

Nickel phosphate

Copper ferrocyanide

Barium oxalate

34. Units of molarity are

Mol/lit

Kg/lit

Gm/lit

None

35. Depression in freezing point is directly to

Molarity of solution

Molality of solvent

Molality of solution

Molarity of solvent

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

Solution

Radical

Compound

Ion

37. The osmotic pressure of solution increases if

Temperature is decreased

Number of solute molecules are increased

Volume is increased

Solution constant is increased

38. The solution which distils over with change in composition

Non-ideal solution

Zeotropic solution

Ideal solution

Azeotropic solution

39. Isotonic solutions have same

Normality

Molality

None of these

Molar concentration

40. The molal depression constant depends upon

Nature of solute

∆H solution

Vapour pressure of solution

Nature of solvent

41. 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

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

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

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

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

None of these

Saturated

Supersaturated

Unsaturated

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

Solution

Solvent

Solute

Phase

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

Slightly more than the total volume of the components

None of these

Equal to the total volume of the components

Slightly less than the total volume of the components

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

Saturated solution

Unsaturated solution

Super saturated solution

Dilute solution

46. Solution of Na2SO4 will be

Neutral

More acidic

Acidic

Basic

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

Solvation

Solution

Solvent

Solute

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

Urea

Glucose

KCl

CaCl₂

49. Which one will from an ideal solution?

H₂O and HBr.

C₆H₆ and CCI₄

C₂H₅OH and H₂O

CHCI₃ and CH₃COOCH₃

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

1 mole solution

1 Molar solution

1 normal solution

None of these

Page 3 of 3

51. In partially miscible liquids the two layers are

Normal solution of each other

No layer formation takes place

Saturated solution of each other

Unsaturated solution of each other

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

Non-ideal solution

Azeotropic solution

Zeotropic solution

Ideal solution

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

Freezing point

Osmotic pressure

Lowering of vapour pressure

Elevation of polling point

54. Maximum F.P falls in

Camphor

Water

Naphthalene

Benzene

55. 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.)

0.066 N

0.090 N

0.033 N

0.045 N

56. 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

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

-1.86°C

+1.86°C

+3.72°C

-3.72°C

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

Dilute

Saturated solution

All of these

Concentrated

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

Solute

Phase

Ion

Solvent

60. 10ml of alcohol dissolve in 90ml of water unit of concentration used is

% w/w

% v/w

% w/v

% v/v

61. 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).

1.20 eq

0.600 eq

2.40 eq

3.60 eq

62. Which has the minimum freezing point?

One molal CaCI₂

One molal KCl Solution

One molal urea solution

One Molal NaCl

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

Dilute solution

Non-volatile solute

All of these

Non-electrolyte solute

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

Osmotic pressure

Elevation of boiling point

Modification of refractive index

Depression in freezing pint

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

UET Lahore, Taxila ECAT Chemistry Entry Test Online…
NED-Karachi ECAT Chemistry Entry Test Online Preparation
UET Lahore Combined Entry Test 2025 ECAT Schedule…
NED-Karachi ECAT Maths Entry Test Online Preparation
UET Lahore, Taxila ECAT Physics Entry Test Online…
NUST Rawalpindi ECAT Chemistry Entry Test Preparation Online
NED-Karachi ECAT Physics Entry Test Online Preparation
Mehran University Sindh ECAT Physics Entry Test…

UET Peshawar Entry Test 2025 Registration Online ETEA Test D...
ECAT Statistics Test Set 17
ECAT Statistics Test Set 16
ECAT Statistics Test Set 15
ECAT Statistics Test Set 14
ECAT Statistics Test Set 13
ECAT Statistics Test Set 12
ECAT Statistics Test Set 11
ECAT Statistics Test Set 10
ECAT Statistics Test Set 9

Maan AliLast Updated: April 19, 2025

Facebook Twitter Reddit WhatsApp Share via Email Print

ECAT Chemistry Solutions Online Test

Chemistry Solutions MCQS Online Test

ECAT Chemistry Solutions Chapter Online Test

ECAT Chemistry Solutions Test

Chemistry

Related:

You Might Also Like

Maan Ali

Leave a Reply Cancel reply