Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

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Question 1

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

Question 2

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

Answer

Two inches

Answer

Three inches

Answer

Six inches

Answer

Five inches

Question 3

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

Answer

Diammonium phosphate

Answer

Calcium super phosphate

Answer

Potassium nitrate

Question 4

4. Asbestos is a (n)

Answer

Mineral fiber

Answer

Animal fiber

Answer

Vegetable fiber

Answer

Synthetic fiber

Question 5

5. Natural fertilizer from plants and animals provide nitrogen

Question 6

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

Answer

Boiling point of water

Answer

Viscosity of water

Answer

Surface tension of water

Answer

Wetting ability of water

Question 7

7. The %age of nitrogen in urea is

Question 8

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

Answer

NH₄NO₃

Question 9

9. Choose the difference between natural and synthetic fertilizers

Answer

Raw material

Answer

Crop application

Question 10

10. In FWFP, the phosphate fertilizers are produced at

Question 11

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

Question 12

12. The fertility of soil is improved by

Answer

Rotation of the crops

Answer

Adding manure and growing legumes

Answer

Adding lime to the acid salts

Question 13

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

Answer

Five inches

Answer

Three inches

Answer

Six inches

Answer

Two inches

Question 14

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

Answer

Endothermic

Answer

Exothermic

Answer

Both a and b

Answer

No heat energy is involved

Question 15

15. Micro nutrients are required in quality ranging from

Answer

4g – 40g

Answer

6g – 200kg

Answer

6g – 200g

Answer

4kg – 40kg

Question 16

16. Detergents are

Answer

Synthetic products

Answer

Natural products

Answer

Both A and B

Answer

None of these

Question 17

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

Answer

Phosphorus fertilizer

Answer

Micronutrients

Answer

Nitrogenous fertilizers

Answer

All of the above

Question 18

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

Answer

It accelerates fruits and flowers growth

Answer

It is involved in the synthesis of protein and nucleic acids

Answer

It is involved in the chlorophyll synthesis

Answer

It enhances plant growth

Question 19

19. Which is not a calcareous material?

Answer

Marine shell

Question 20

20. The use of detergents is problematic because

Answer

Of non-availability

Answer

Of high cost

Answer

Of water pollution

Answer

It deteriorates on health

Question 21

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

Answer

Rice straw

Question 22

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

Answer

Cleaning, screening, bleaching, digestion

Answer

Cleaning, digestion bleaching screening

Answer

Cleaning, digestion, screening, bleaching

Answer

Cleaning, screening, digestion bleaching

Question 23

23. Phosphorus is very useful in the growth of

Question 24

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

Question 25

25. 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 26

26. The number of paper industries in Pakistan are

Question 27

27. Which of the following is not a synthetic fertilizer

Answer

Calcium phosphate

Answer

Ammonium nitrate

Question 28

28. Cement was introduced by a mason

Answer

Humphry Davy

Answer

Joseph Aspdin

Answer

Freidrik Miescher

Question 29

29. The percentage of nitrogen in urea is

Question 30

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

Answer

Sun flower

Answer

Water Hyacinth

Question 31

31. Cement is a mixture of

Answer

Lime stone and clay

Answer

Lime stone and gypsum

Answer

Clay lime stone and gypsum

Answer

Clay and clinker

Question 32

32. The compound which does not form iodoform

Answer

Acetaldehyde

Answer

Ethyl alcohol

Answer

Methyl alcohol

Question 33

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

Question 34

34. Usually the percentage of moisture in paper is

Question 35

35. Argillaceous material does not include

Answer

Marine shells

Answer

Blast furnace slag

Question 36

36. Micro-nutrients are required in quantity ranging from

Question 37

37. Ceramics industry deals with the production of

Question 38

38. Vanishes are more frequently used on

Answer

Both iron and wood

Question 39

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

Answer

None of these

Answer

Adipic acid

Answer

Formic acid

Answer

Acetic acid

Question 40

40. Which of the following is a synthetic fertilizer?

Answer

Animal excretes

Answer

Plant, leave under fermentation

Answer

Animal bones

Question 41

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

Answer

Ammonium nitrate

Answer

Ammonium sulphate

Question 42

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

Question 43

43. What is clinker?

Answer

Roasted argillaceous material

Answer

Roasted calcareous material

Answer

Roasted calcareous and argillaceous material

Answer

Roasted gypsum

Question 44

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

Answer

Crystallization

Answer

Evaporation

Answer

Condensation

Question 45

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

Answer

Lime stone

Answer

Iron oxide

Question 46

46. In which paper some additive is not added

Answer

Glazed paper

Answer

Filter paper

Answer

Carbon paper

Question 47

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

Question 48

48. In Pakistan, paper consumption per person is

Question 49

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

Answer

Wet process

Answer

Dry process

Question 50

50. The nitrogen present in some fertilizers help plants

Answer

To fight against diseases

Answer

To produce protein

Answer

To undergo photosynthesis

Answer

To produce fat

Question 51

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

Question 52

52. Potassium fertilizers are especially useful for

Answer

All of these

Question 53

53. What is clinker?

Answer

Roasted calcareous and argillaceous material

Answer

Roasted calcareous material

Answer

Roasted argillaceous material

Answer

Roasted gypsum

Question 54

54. The fertilizer contains 33 – 35% N is

Answer

Potassium nitrate

Answer

Ammonium nitrate

Question 55

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

Answer

Silica (SiO₂)

Answer

Magnesia (MgO)

Answer

Alumina (Al₂O₃)

Answer

Lime (CaO)

Question 56

56. Which of the following is macronutrient?

Question 57

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

Answer

Sun flower

Answer

Water hyacinth

Question 58

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

Question 59

59. Calcarious material includes

Answer

All of these

Answer

Lime stone

Question 60

60. 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 61

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

Answer

ZnO + Cr2O3

Answer

Fe in fused mixture of Al2O3 + SiQ2 + MgO

Answer

All of the above

Question 62

62. 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 63

63. Fertilizer are made by

Answer

Both artificial and natural methods

Answer

Artificial methods only

Answer

Nature only

Answer

None of these

Question 64

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

Answer

Rice straw

Answer 131

Ammonium chloride

Answer 132

Ammonium sulphate

Answer 133

Ammonium nitrate

Answer 134

Both a and b

Answer 135

None of these

Answer 136

Ammonium nitrate

Answer 137

Animals only

Answer 138

Both plants and animals

Answer 139

None of all

Answer 140

Paddy rice

Answer 141

Sugar cane

Answer 142

It provides micronutrients to the plants

Answer 143

It is a natural fertilizer

Answer 144

It is an inorganic water soluble compound

Answer 145

It is a synthetic fertilizer

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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