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Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

Mustansar KhanLast Updated: October 14, 2025

Important Chemistry Common Chemical Industries in Pakistan Question and Answer

Total Questions:	72
Time Allowed:	30 Minutes
Total Marks:	72
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Page 1 of 3

1. Choose the difference between natural and synthetic fertilizers

Shapes

Raw material

Crop application

Usage

2. The %age of nitrogen in urea is

3. Asbestos is a (n)

Synthetic fiber

Vegetable fiber

Mineral fiber

Animal fiber

4. Which of the following is incorrect statement about nitrogen importance?

It is involved in the chlorophyll synthesis

It is involved in the synthesis of protein and nucleic acids

It accelerates fruits and flowers growth

It enhances plant growth

5. Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage?

Silica (SiO₂)

Magnesia (MgO)

Alumina (Al₂O₃)

Lime (CaO)

6. The word paper is derived from the name of which reedy plant

Sun flower

Water hyacinth

Rose

Papyrus

7. The fertility of soil is improved by

Adding manure and growing legumes

Rotation of the crops

Adding lime to the acid salts

All

8. The nutrients which are required in very small amount for the normal growth of plants are called

Micronutrients

Nitrogenous fertilizers

All of the above

Phosphorus fertilizer

9. The percentage of nitrogen in urea is

10. Which of the following is a synthetic fertilizer?

Plant, leave under fermentation

Urea

Animal bones

Animal excretes

11. Which woody raw material is used for the manufacture of paper pulp?

Bagasse

Rice straw

Poplar

Cotton

12. Which of these is the most widely used nitrogen fertilizer in Pakistan?

Ammonium chloride

Ammonium nitrate

Urea

Ammonium sulphate

13. Which three elements are needed for the healthy growth of plants?

N, Ca, P

N, K, C

N, S, P

N, P, K

14. The compound which does not form iodoform

Acetone

Methyl alcohol

Ethyl alcohol

Acetaldehyde

15. What is clinker?

Roasted gypsum

Roasted calcareous and argillaceous material

Roasted argillaceous material

Roasted calcareous material

16. The nitrogen present in some fertilizers help plants

To produce fat

To fight against diseases

To produce protein

To undergo photosynthesis

17. Cement is a mixture of

Lime stone and gypsum

Clay lime stone and gypsum

Clay and clinker

Lime stone and clay

18. Which one of the following is an inorganic fertilizer?

All

Urea

Manure

Ammonium nitrate

19. When equal proportion of CH₃ – I and C₂H₅ – I are treated with Na metal in presence of dry ether, the number of possible hydrocarbons obtained will be

20. In Pakistan, paper consumption per person is

8kg

5kg

6kg

10kg

21. Micro nutrients are required in quality ranging from

4g – 40g

6g – 200g

4kg – 40kg

6g – 200kg

22. Which three elements are needed for the health growth of plants?

N, P, K

S, S, P

N, K, C

N, Ca, P

23. Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes?

K₂SO₄

KCI

KNO₃

KMnO₄

24. Which sequence of steps is correct for the manufacture of cement?

Mixing heating grinding crushing

Crushing grinding mixing heating

Crushing heating mixing grinding

Crushing mixing heating grinding and mixing

25. The word paper is derived from the name of which reed plant

Water Hyacinth

Rose

Papyrus

Sun flower

Page 2 of 3

26. Micro-nutrients are required in quantity ranging from

4kg-40kg

4g-40g

6g-200g

6kg-200kg

27. Which of the following is the most suitable catalyst for ammonia synthesis?

ZnO + Cr2O3

Fe in fused mixture of Al2O3 + SiQ2 + MgO

All of the above

28. Fertilizer are made by

Both artificial and natural methods

None of these

Nature only

Artificial methods only

29. Ceramics industry deals with the production of

Cement

Pottery

Paper

Glass

30. Surfactants are organic compounds, used in detergents which reduce the

Boiling point of water

Surface tension of water

Wetting ability of water

Viscosity of water

31. The use of detergents is problematic because

Of water pollution

Of high cost

Of non-availability

It deteriorates on health

32. In which paper some additive is not added

Filter paper

Glazed paper

Art paper

Carbon paper

33. Phosphorus is very useful in the growth of

Leave

Root

Stem

Seed

34. Which one of the following is the macronutrient for plants?

Calcium

Zinc

Nitrogen

Boron

35. How many fertilizer plants are now in Pakistan?

36. Ammonia gas used directly as a fertilizer injected into the soil a depth of about

Five inches

Three inches

Six inches

Two inches

37. Which of the following fertilizers is not useful for paddy rice?

Ammonium nitrate

Ammonium sulphate

Urea

DAP

38. Which woody raw material is used for the manufacture of paper pulp?

Poplar

Bugases

Rice straw

Cotton

39. The %age composition of the auxiliary agent in a detergent is

30%

10%

50%

70%

40. Natural fertilizer provides phosphorus to plants in the form of P₂O₅

1.2 kg

2.2 kg

3.2 kg

4 kg

41. Argillaceous material does not include

Blast furnace slag

Vlay

Slate

Marine shells

42. Potassium fertilizers are especially useful for

All of these

Tobacco

Potato

Coffee

43. Ammonia gas used directly as a fertilizer is injected into the soil at a depth of about

Five inches

Six inches

Two inches

Three inches

44. DAP (Diammonium hydrogen phosphate) contains ___________ plant nutrients.

60%

70%

65%

75%

45. Which of the following processes is used for the synthesis of cement?

Dry process

Wet process

Both

None

46. In FWFP, the phosphate fertilizers are produced at

D.I.Khan

Nowshera

Dargai

Haripur

47. Usually the percentage of moisture in paper is

6 – 8%

1 – 3%

4 – 6%

48. Which of the following is not a synthetic fertilizer

Dung

Urea

Ammonium nitrate

Calcium phosphate

49. Which of the following nitrogen fertilizer contain more nitrogen?

Urea

KNO₃

NH₄NO₃

NaNO₃

50. Natural fertilizer from plants and animals provide nitrogen

4.5 kg

6 kg

3.0 kg

1.5 kg

Page 3 of 3

51. Detergents are

Natural products

Both A and B

None of these

Synthetic products

52. Calcarious material includes

Marble

Lime stone

Chalk

All of these

53. Hexamethylene reacts with ________ to prepare nylon 6,6.

Formic acid

Acetic acid

Adipic acid

None of these

54. Which sequence of processes are correct for the manufacture of urea?

Prilling, carbamate condensation, evaporation, dehydration

Carbamate condensation, dehydration evaporation, prilling

Dehydration, evaporation, carbamate condensation, prilling

Carbamate condensation, evaporation dehydration, prilling

55. Addition of urea to the soil is _________ reaction.

Endothermic

No heat energy is involved

Both a and b

Exothermic

56. Which of the following is macronutrient?

57. The number of paper industries in Pakistan are

58. Natural fertilizes are materials derived from

Animals only

Plants

None of all

Both plants and animals

59. How many zones through which the charge passes in a rotary kiln?

60. Ammonium nitrate fertilizer is not used for which crop

Paddy rice

Cotton

Sugar cane

Wheat

61. What is clinker?

Roasted calcareous and argillaceous material

Roasted gypsum

Roasted argillaceous material

Roasted calcareous material

62. Which one of the following fertilizers provide the nitrogen and phosphorus to the plants?

Urea

Potassium nitrate

Diammonium phosphate

Calcium super phosphate

63. The fertilizer contains 33 – 35% N is

Potassium nitrate

Ammonium nitrate

Urea

Ammonia

64. How many zones through which the charge passes in a rotary kiln?

65. Vanishes are more frequently used on

Both iron and wood

Iron

Wood

Plastics

66. Which one of the following raw material is not present in the cement?

Iron oxide

KNO3

Lime stone

Gypsum

67. What will be the correct sequence of processes involved in pulp making?

Cleaning, digestion, screening, bleaching

Cleaning, screening, digestion bleaching

Cleaning, screening, bleaching, digestion

Cleaning, digestion bleaching screening

68. The cooling of molten urea by air in the tower is called

Condensation

Crystallization

Evaporation

Prilling

69. Which one of the following statement is correct for urea?

It provides micronutrients to the plants

It is a natural fertilizer

It is a synthetic fertilizer

It is an inorganic water soluble compound

70. The fertilizers which provide single nutrient from NPK are called _________ fertilizer.

Both a and b

Straight

None of these

Compound

71. Which is not a calcareous material?

Marble

Line

Clay

Marine shell

72. Cement was introduced by a mason

Joseph Aspdin

Humphry Davy

D-H whove

Freidrik Miescher

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Mustansar KhanLast Updated: October 14, 2025

Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

Important Chemistry Common Chemical Industries in Pakistan Question and Answer

Chemistry Common Chemical Industries Practice Test Online With Explanation

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