Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

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Question 1

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

Answer

Crushing grinding mixing heating

Answer

Crushing heating mixing grinding

Answer

Mixing heating grinding crushing

Answer

Crushing mixing heating grinding and mixing

Question 2

2. 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 3

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

Answer

None of these

Answer

Both a and b

Question 4

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

Answer

Wet process

Answer

Dry process

Question 5

5. Ceramics industry deals with the production of

Question 6

6. Which of the following is macronutrient?

Question 7

7. The percentage of nitrogen in urea is

Question 8

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

Answer

Sun flower

Answer

Water Hyacinth

Question 9

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

Answer

Six inches

Answer

Two inches

Answer

Three inches

Answer

Five inches

Question 10

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

Answer

Ammonium nitrate

Answer

Ammonium sulphate

Question 11

11. 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 12

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

Question 13

13. The %age of nitrogen in urea is

Question 14

14. Natural fertilizer from plants and animals provide nitrogen

Question 15

15. Micro nutrients are required in quality ranging from

Answer

4kg – 40kg

Answer

6g – 200g

Answer

6g – 200kg

Answer

4g – 40g

Question 16

16. The nitrogen present in some fertilizers help plants

Answer

To undergo photosynthesis

Answer

To produce fat

Answer

To fight against diseases

Answer

To produce protein

Question 17

17. In FWFP, the phosphate fertilizers are produced at

Question 18

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

Answer

Condensation

Answer

Evaporation

Answer

Crystallization

Question 19

19. Argillaceous material does not include

Answer

Marine shells

Answer

Blast furnace slag

Question 20

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

Answer

Both a and b

Answer

Exothermic

Answer

No heat energy is involved

Answer

Endothermic

Question 21

21. Cement was introduced by a mason

Answer

Joseph Aspdin

Answer

Freidrik Miescher

Answer

Humphry Davy

Question 22

22. Choose the difference between natural and synthetic fertilizers

Answer

Raw material

Answer

Crop application

Question 23

23. Which is not a calcareous material?

Answer

Marine shell

Question 24

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

Question 25

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

Question 26

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

Answer

Ammonium chloride

Answer

Ammonium sulphate

Answer

Ammonium nitrate

Question 27

27. Phosphorus is very useful in the growth of

Question 28

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

Answer

NH₄NO₃

Question 29

29. Which of the following is a synthetic fertilizer?

Answer

Plant, leave under fermentation

Answer

Animal bones

Answer

Animal excretes

Question 30

30. Which of the following is not a synthetic fertilizer

Answer

Calcium phosphate

Answer

Ammonium nitrate

Question 31

31. 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 32

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

Answer

Silica (SiO₂)

Answer

Lime (CaO)

Answer

Alumina (Al₂O₃)

Answer

Magnesia (MgO)

Question 33

33. 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 34

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

Answer

Lime stone

Answer

Iron oxide

Question 35

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

Question 36

36. Asbestos is a (n)

Answer

Mineral fiber

Answer

Synthetic fiber

Answer

Vegetable fiber

Answer

Animal fiber

Question 37

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

Answer

Cleaning, digestion, screening, bleaching

Answer

Cleaning, screening, digestion bleaching

Answer

Cleaning, digestion bleaching screening

Answer

Cleaning, screening, bleaching, digestion

Question 38

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

Answer

Rice straw

Question 39

39. Cement is a mixture of

Answer

Clay and clinker

Answer

Lime stone and clay

Answer

Clay lime stone and gypsum

Answer

Lime stone and gypsum

Question 40

40. The number of paper industries in Pakistan are

Question 41

41. In Pakistan, paper consumption per person is

Question 42

42. The compound which does not form iodoform

Answer

Methyl alcohol

Answer

Acetaldehyde

Answer

Ethyl alcohol

Question 43

43. What is clinker?

Answer

Roasted calcareous and argillaceous material

Answer

Roasted calcareous material

Answer

Roasted argillaceous material

Answer

Roasted gypsum

Question 44

44. How many fertilizer plants are now in Pakistan?

Question 45

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

Answer

It is an inorganic water soluble compound

Answer

It is a natural fertilizer

Answer

It provides micronutrients to the plants

Answer

It is a synthetic fertilizer

Question 46

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

Answer

Rice straw

Question 47

47. Calcarious material includes

Answer

Lime stone

Answer

All of these

Question 48

48. Detergents are

Answer

None of these

Answer

Synthetic products

Answer

Both A and B

Answer

Natural products

Question 49

49. Natural fertilizes are materials derived from

Answer

Animals only

Answer

Both plants and animals

Answer

None of all

Question 50

50. 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 51

51. The fertilizer contains 33 – 35% N is

Answer

Ammonium nitrate

Answer

Potassium nitrate

Question 52

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

Answer

Ammonium nitrate

Question 53

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

Question 54

54. Vanishes are more frequently used on

Answer

Both iron and wood

Question 55

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

Question 56

56. Fertilizer are made by

Answer

None of these

Answer

Both artificial and natural methods

Answer

Nature only

Answer

Artificial methods only

Question 57

57. Potassium fertilizers are especially useful for

Answer

All of these

Question 58

58. Ammonium nitrate fertilizer is not used for which crop

Answer

Sugar cane

Answer

Paddy rice

Question 59

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

Answer

Sun flower

Answer

Water hyacinth

Question 60

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

Answer

Micronutrients

Answer

Nitrogenous fertilizers

Answer

Phosphorus fertilizer

Answer

All of the above

Question 61

61. 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 62

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

Answer

Formic acid

Answer

Adipic acid

Answer

None of these

Answer

Acetic acid

Question 63

63. Usually the percentage of moisture in paper is

Question 64

64. What is clinker?

Answer

Roasted gypsum

Answer

Roasted calcareous material

Answer

Roasted argillaceous material

Answer

Roasted calcareous and argillaceous material

Answer 132

Dehydration, evaporation, carbamate condensation, prilling

Answer 133

Carbamate condensation, evaporation dehydration, prilling

Answer 134

Carbamate condensation, dehydration evaporation, prilling

Answer 135

Prilling, carbamate condensation, evaporation, dehydration

Answer 136

Filter paper

Answer 137

Carbon paper

Answer 138

Glazed paper

Answer 139

Three inches

Answer 140

Six inches

Answer 141

Two inches

Answer 142

Five inches

Answer 143

Fe in fused mixture of Al2O3 + SiQ2 + MgO

Answer 144

All of the above

Answer 145

ZnO + Cr2O3

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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