Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

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Question 1

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

Question 2

2. What is clinker?

Answer

Roasted gypsum

Answer

Roasted calcareous and argillaceous material

Answer

Roasted argillaceous material

Answer

Roasted calcareous material

Question 3

3. Potassium fertilizers are especially useful for

Answer

All of these

Question 4

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

Answer

Ammonium nitrate

Question 5

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

Question 6

6. Natural fertilizer from plants and animals provide nitrogen

Question 7

7. Choose the difference between natural and synthetic fertilizers

Answer

Raw material

Answer

Crop application

Question 8

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

Answer

All of the above

Answer

Nitrogenous fertilizers

Answer

Phosphorus fertilizer

Answer

Micronutrients

Question 9

9. In Pakistan, paper consumption per person is

Question 10

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

Answer

Water hyacinth

Answer

Sun flower

Question 11

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

Question 12

12. 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 13

13. In FWFP, the phosphate fertilizers are produced at

Question 14

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

Answer

Endothermic

Answer

Both a and b

Answer

Exothermic

Answer

No heat energy is involved

Question 15

15. Argillaceous material does not include

Answer

Marine shells

Answer

Blast furnace slag

Question 16

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

Answer

Fe in fused mixture of Al2O3 + SiQ2 + MgO

Answer

All of the above

Answer

ZnO + Cr2O3

Question 17

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

Answer

Alumina (Al₂O₃)

Answer

Silica (SiO₂)

Answer

Magnesia (MgO)

Answer

Lime (CaO)

Question 18

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

Answer

Ammonium nitrate

Answer

Ammonium sulphate

Answer

Ammonium chloride

Question 19

19. Which of the following is a synthetic fertilizer?

Answer

Plant, leave under fermentation

Answer

Animal excretes

Answer

Animal bones

Question 20

20. The fertilizer contains 33 – 35% N is

Answer

Potassium nitrate

Answer

Ammonium nitrate

Question 21

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

Answer

Rice straw

Question 22

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

Answer

It enhances plant growth

Answer

It is involved in the chlorophyll synthesis

Answer

It is involved in the synthesis of protein and nucleic acids

Answer

It accelerates fruits and flowers growth

Question 23

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

Answer

Wet process

Answer

Dry process

Question 24

24. Asbestos is a (n)

Answer

Mineral fiber

Answer

Animal fiber

Answer

Vegetable fiber

Answer

Synthetic fiber

Question 25

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

Answer

Two inches

Answer

Six inches

Answer

Three inches

Answer

Five inches

Question 26

26. Fertilizer are made by

Answer

Artificial methods only

Answer

Both artificial and natural methods

Answer

None of these

Answer

Nature only

Question 27

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

Question 28

28. The number of paper industries in Pakistan are

Question 29

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

Answer

Rice straw

Question 30

30. Natural fertilizes are materials derived from

Answer

None of all

Answer

Animals only

Answer

Both plants and animals

Question 31

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

Answer

Cleaning, digestion, screening, bleaching

Answer

Cleaning, screening, bleaching, digestion

Answer

Cleaning, screening, digestion bleaching

Answer

Cleaning, digestion bleaching screening

Question 32

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

Answer

Evaporation

Answer

Condensation

Answer

Crystallization

Question 33

33. Vanishes are more frequently used on

Answer

Both iron and wood

Question 34

34. The %age of nitrogen in urea is

Question 35

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

Answer

Boiling point of water

Answer

Surface tension of water

Answer

Wetting ability of water

Answer

Viscosity of water

Question 36

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

Answer

Ammonium sulphate

Answer

Ammonium nitrate

Question 37

37. Micro-nutrients are required in quantity ranging from

Question 38

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

Answer

It is a synthetic fertilizer

Answer

It provides micronutrients to the plants

Answer

It is an inorganic water soluble compound

Answer

It is a natural fertilizer

Question 39

39. The percentage of nitrogen in urea is

Question 40

40. Usually the percentage of moisture in paper is

Question 41

41. The fertility of soil is improved by

Answer

Adding manure and growing legumes

Answer

Adding lime to the acid salts

Answer

Rotation of the crops

Question 42

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

Question 43

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

Answer

Water Hyacinth

Answer

Sun flower

Question 44

44. What is clinker?

Answer

Roasted argillaceous material

Answer

Roasted calcareous material

Answer

Roasted calcareous and argillaceous material

Answer

Roasted gypsum

Question 45

45. Which of the following is macronutrient?

Question 46

46. The nitrogen present in some fertilizers help plants

Answer

To undergo photosynthesis

Answer

To fight against diseases

Answer

To produce fat

Answer

To produce protein

Question 47

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

Answer

NH₄NO₃

Question 48

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

Answer

Calcium super phosphate

Answer

Diammonium phosphate

Answer

Potassium nitrate

Question 49

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

Answer

Six inches

Answer

Two inches

Answer

Three inches

Answer

Five inches

Question 50

50. How many fertilizer plants are now in Pakistan?

Question 51

51. In which paper some additive is not added

Answer

Filter paper

Answer

Carbon paper

Answer

Glazed paper

Question 52

52. Micro nutrients are required in quality ranging from

Answer

4kg – 40kg

Answer

6g – 200g

Answer

4g – 40g

Answer

6g – 200kg

Question 53

53. Detergents are

Answer

None of these

Answer

Natural products

Answer

Synthetic products

Answer

Both A and B

Question 54

54. Phosphorus is very useful in the growth of

Question 55

55. Ammonium nitrate fertilizer is not used for which crop

Answer

Sugar cane

Answer

Paddy rice

Question 56

56. The compound which does not form iodoform

Answer

Ethyl alcohol

Answer

Methyl alcohol

Answer

Acetaldehyde

Question 57

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

Question 58

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

Answer

Carbamate condensation, dehydration evaporation, prilling

Answer

Dehydration, evaporation, carbamate condensation, prilling

Answer

Carbamate condensation, evaporation dehydration, prilling

Answer

Prilling, carbamate condensation, evaporation, dehydration

Question 59

59. The use of detergents is problematic because

Answer

Of high cost

Answer

Of water pollution

Answer

It deteriorates on health

Answer

Of non-availability

Question 60

60. Cement was introduced by a mason

Answer

Freidrik Miescher

Answer

Joseph Aspdin

Answer

Humphry Davy

Question 61

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

Question 62

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

Question 63

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

Answer

Mixing heating grinding crushing

Answer

Crushing mixing heating grinding and mixing

Answer

Crushing grinding mixing heating

Answer

Crushing heating mixing grinding

Question 64

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

Answer

None of these

Answer

Acetic acid

Answer

Adipic acid

Answer

Formic acid

Answer 133

Lime stone

Answer 134

All of these

Answer 135

Iron oxide

Answer 136

Lime stone

Answer 137

Ammonium nitrate

Answer 138

Calcium phosphate

Answer 139

Both a and b

Answer 140

None of these

Answer 141

Clay and clinker

Answer 142

Clay lime stone and gypsum

Answer 143

Lime stone and gypsum

Answer 144

Lime stone and clay

Answer 145

Marine shell

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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