Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

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Question 1

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

Answer

Ammonium sulphate

Answer

Ammonium nitrate

Question 2

2. Calcarious material includes

Answer

Lime stone

Answer

All of these

Question 3

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

Answer

Rice straw

Question 4

4. 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

Question 5

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

Answer

NH₄NO₃

Question 6

6. Potassium fertilizers are especially useful for

Answer

All of these

Question 7

7. Which of the following is not a synthetic fertilizer

Answer

Ammonium nitrate

Answer

Calcium phosphate

Question 8

8. Natural fertilizer from plants and animals provide nitrogen

Question 9

9. The use of detergents is problematic because

Answer

It deteriorates on health

Answer

Of non-availability

Answer

Of water pollution

Answer

Of high cost

Question 10

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

Answer

Potassium nitrate

Answer

Calcium super phosphate

Answer

Diammonium phosphate

Question 11

11. Vanishes are more frequently used on

Answer

Both iron and wood

Question 12

12. The percentage of nitrogen in urea is

Question 13

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

Answer

Formic acid

Answer

None of these

Answer

Adipic acid

Answer

Acetic acid

Question 14

14. The %age of nitrogen in urea is

Question 15

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

Question 16

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

Answer

All of the above

Answer

Phosphorus fertilizer

Answer

Micronutrients

Answer

Nitrogenous fertilizers

Question 17

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

Answer

Ammonium nitrate

Answer

Ammonium chloride

Answer

Ammonium sulphate

Question 18

18. The fertilizer contains 33 – 35% N is

Answer

Potassium nitrate

Answer

Ammonium nitrate

Question 19

19. Micro nutrients are required in quality ranging from

Answer

6g – 200kg

Answer

6g – 200g

Answer

4g – 40g

Answer

4kg – 40kg

Question 20

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

Answer

Cleaning, screening, digestion bleaching

Answer

Cleaning, digestion bleaching screening

Answer

Cleaning, digestion, screening, bleaching

Answer

Cleaning, screening, bleaching, digestion

Question 21

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

Question 22

22. Ceramics industry deals with the production of

Question 23

23. Choose the difference between natural and synthetic fertilizers

Answer

Raw material

Answer

Crop application

Question 24

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

Answer

Both a and b

Answer

None of these

Question 25

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

Question 26

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

Answer

Three inches

Answer

Six inches

Answer

Five inches

Answer

Two inches

Question 27

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

Answer

Lime (CaO)

Answer

Silica (SiO₂)

Answer

Magnesia (MgO)

Answer

Alumina (Al₂O₃)

Question 28

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

Answer

Five inches

Answer

Three inches

Answer

Two inches

Answer

Six inches

Question 29

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

Answer

Sun flower

Answer

Water Hyacinth

Question 30

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

Answer

It is a synthetic fertilizer

Answer

It is a natural fertilizer

Answer

It is an inorganic water soluble compound

Answer

It provides micronutrients to the plants

Question 31

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

Answer

Condensation

Answer

Crystallization

Answer

Evaporation

Question 32

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

Answer

Crushing mixing heating grinding and mixing

Answer

Crushing heating mixing grinding

Answer

Mixing heating grinding crushing

Answer

Crushing grinding mixing heating

Question 33

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

Answer

Ammonium nitrate

Question 34

34. Which is not a calcareous material?

Answer

Marine shell

Question 35

35. What is clinker?

Answer

Roasted argillaceous material

Answer

Roasted calcareous material

Answer

Roasted gypsum

Answer

Roasted calcareous and argillaceous material

Question 36

36. How many fertilizer plants are now in Pakistan?

Question 37

37. In FWFP, the phosphate fertilizers are produced at

Question 38

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

Answer

Rice straw

Question 39

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

Question 40

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

Question 41

41. What is clinker?

Answer

Roasted calcareous material

Answer

Roasted argillaceous material

Answer

Roasted gypsum

Answer

Roasted calcareous and argillaceous material

Question 42

42. Detergents are

Answer

Natural products

Answer

None of these

Answer

Synthetic products

Answer

Both A and B

Question 43

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

Answer

Dry process

Answer

Wet process

Question 44

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

Answer

Sun flower

Answer

Water hyacinth

Question 45

45. The number of paper industries in Pakistan are

Question 46

46. The fertility of soil is improved by

Answer

Rotation of the crops

Answer

Adding lime to the acid salts

Answer

Adding manure and growing legumes

Question 47

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

Answer

Endothermic

Answer

No heat energy is involved

Answer

Exothermic

Answer

Both a and b

Question 48

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

Answer

ZnO + Cr2O3

Answer

All of the above

Answer

Fe in fused mixture of Al2O3 + SiQ2 + MgO

Question 49

49. Argillaceous material does not include

Answer

Blast furnace slag

Answer

Marine shells

Question 50

50. Asbestos is a (n)

Answer

Vegetable fiber

Answer

Mineral fiber

Answer

Synthetic fiber

Answer

Animal fiber

Question 51

51. Usually the percentage of moisture in paper is

Question 52

52. Phosphorus is very useful in the growth of

Question 53

53. Which of the following is a synthetic fertilizer?

Answer

Animal bones

Answer

Animal excretes

Answer

Plant, leave under fermentation

Question 54

54. Fertilizer are made by

Answer

Nature only

Answer

None of these

Answer

Both artificial and natural methods

Answer

Artificial methods only

Question 55

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

Question 56

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

Answer

It is involved in the chlorophyll synthesis

Answer

It enhances plant growth

Answer

It accelerates fruits and flowers growth

Answer

It is involved in the synthesis of protein and nucleic acids

Question 57

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

Question 58

58. Cement is a mixture of

Answer

Clay lime stone and gypsum

Answer

Lime stone and clay

Answer

Lime stone and gypsum

Answer

Clay and clinker

Question 59

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

Answer

Lime stone

Answer

Iron oxide

Question 60

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

Question 61

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

Answer

Viscosity of water

Answer

Wetting ability of water

Answer

Surface tension of water

Answer

Boiling point of water

Question 62

62. In Pakistan, paper consumption per person is

Question 63

63. Which of the following is macronutrient?

Question 64

64. In which paper some additive is not added

Answer

Filter paper

Answer

Glazed paper

Answer

Carbon paper

Answer 127

To undergo photosynthesis

Answer 128

To produce fat

Answer 129

To produce protein

Answer 130

To fight against diseases

Answer 131

Freidrik Miescher

Answer 132

Humphry Davy

Answer 133

Joseph Aspdin

Answer 134

None of all

Answer 135

Both plants and animals

Answer 136

Animals only

Answer 137

Paddy rice

Answer 138

Sugar cane

Answer 139

Carbamate condensation, evaporation dehydration, prilling

Answer 140

Carbamate condensation, dehydration evaporation, prilling

Answer 141

Dehydration, evaporation, carbamate condensation, prilling

Answer 142

Prilling, carbamate condensation, evaporation, dehydration

Answer 143

Ethyl alcohol

Answer 144

Methyl alcohol

Answer 145

Acetaldehyde

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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