Chemistry Common Chemical Industries in Pakistan Online Mcqs Test

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Question 1

1. Ceramics industry deals with the production of

Question 2

2. Natural fertilizer from plants and animals provide nitrogen

Question 3

3. The fertilizer contains 33 – 35% N is

Answer

Potassium nitrate

Answer

Ammonium nitrate

Question 4

4. 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 5

5. Asbestos is a (n)

Answer

Vegetable fiber

Answer

Mineral fiber

Answer

Animal fiber

Answer

Synthetic fiber

Question 6

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

Answer

NH₄NO₃

Question 7

7. Calcarious material includes

Answer

All of these

Answer

Lime stone

Question 8

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

Answer

Crushing heating mixing grinding

Answer

Crushing grinding mixing heating

Answer

Mixing heating grinding crushing

Answer

Crushing mixing heating grinding and mixing

Question 9

9. Cement is a mixture of

Answer

Lime stone and gypsum

Answer

Lime stone and clay

Answer

Clay and clinker

Answer

Clay lime stone and gypsum

Question 10

10. Detergents are

Answer

None of these

Answer

Synthetic products

Answer

Natural products

Answer

Both A and B

Question 11

11. In Pakistan, paper consumption per person is

Question 12

12. In which paper some additive is not added

Answer

Carbon paper

Answer

Filter paper

Answer

Glazed paper

Question 13

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

Question 14

14. Vanishes are more frequently used on

Answer

Both iron and wood

Question 15

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

Question 16

16. Argillaceous material does not include

Answer

Marine shells

Answer

Blast furnace slag

Question 17

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

Answer

Rice straw

Question 18

18. In FWFP, the phosphate fertilizers are produced at

Question 19

19. Usually the percentage of moisture in paper is

Question 20

20. The nitrogen present in some fertilizers help plants

Answer

To produce fat

Answer

To undergo photosynthesis

Answer

To produce protein

Answer

To fight against diseases

Question 21

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

Answer

Alumina (Al₂O₃)

Answer

Magnesia (MgO)

Answer

Silica (SiO₂)

Answer

Lime (CaO)

Question 22

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

Question 23

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

Answer

Boiling point of water

Answer

Surface tension of water

Answer

Viscosity of water

Answer

Wetting ability of water

Question 24

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

Question 25

25. The compound which does not form iodoform

Answer

Ethyl alcohol

Answer

Methyl alcohol

Answer

Acetaldehyde

Question 26

26. The percentage of nitrogen in urea is

Question 27

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

Answer

Exothermic

Answer

No heat energy is involved

Answer

Both a and b

Answer

Endothermic

Question 28

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

Answer

Acetic acid

Answer

None of these

Answer

Adipic acid

Answer

Formic acid

Question 29

29. 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 30

30. Potassium fertilizers are especially useful for

Answer

All of these

Question 31

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

Answer

Ammonium chloride

Answer

Ammonium nitrate

Answer

Ammonium sulphate

Question 32

32. Which of the following is macronutrient?

Question 33

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

Answer

Sun flower

Answer

Water Hyacinth

Question 34

34. Fertilizer are made by

Answer

Artificial methods only

Answer

Nature only

Answer

None of these

Answer

Both artificial and natural methods

Question 35

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

Question 36

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

Answer

Rice straw

Question 37

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

Answer

Five inches

Answer

Two inches

Answer

Three inches

Answer

Six inches

Question 38

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

Question 39

39. Choose the difference between natural and synthetic fertilizers

Answer

Raw material

Answer

Crop application

Question 40

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

Answer

Carbamate condensation, dehydration evaporation, prilling

Answer

Carbamate condensation, evaporation dehydration, prilling

Answer

Dehydration, evaporation, carbamate condensation, prilling

Answer

Prilling, carbamate condensation, evaporation, dehydration

Question 41

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

Answer

Lime stone

Answer

Iron oxide

Question 42

42. 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 43

43. 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 44

44. Which is not a calcareous material?

Answer

Marine shell

Question 45

45. Natural fertilizes are materials derived from

Answer

Animals only

Answer

Both plants and animals

Answer

None of all

Question 46

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

Answer

Cleaning, digestion, screening, bleaching

Answer

Cleaning, digestion bleaching screening

Answer

Cleaning, screening, bleaching, digestion

Answer

Cleaning, screening, digestion bleaching

Question 47

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

Question 48

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

Answer

Ammonium nitrate

Question 49

49. What is clinker?

Answer

Roasted calcareous material

Answer

Roasted calcareous and argillaceous material

Answer

Roasted gypsum

Answer

Roasted argillaceous material

Question 50

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

Answer

It is involved in the chlorophyll synthesis

Answer

It is involved in the synthesis of protein and nucleic acids

Answer

It enhances plant growth

Answer

It accelerates fruits and flowers growth

Question 51

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

Answer

None of these

Answer

Both a and b

Question 52

52. Micro-nutrients are required in quantity ranging from

Question 53

53. 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 54

54. How many fertilizer plants are now in Pakistan?

Question 55

55. The %age of nitrogen in urea is

Question 56

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

Question 57

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

Answer

Five inches

Answer

Two inches

Answer

Three inches

Answer

Six inches

Question 58

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

Question 59

59. Which of the following is a synthetic fertilizer?

Answer

Animal excretes

Answer

Animal bones

Answer

Plant, leave under fermentation

Question 60

60. Which of the following is not a synthetic fertilizer

Answer

Ammonium nitrate

Answer

Calcium phosphate

Question 61

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

Answer

Water hyacinth

Answer

Sun flower

Question 62

62. What is clinker?

Answer

Roasted calcareous and argillaceous material

Answer

Roasted gypsum

Answer

Roasted argillaceous material

Answer

Roasted calcareous material

Question 63

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

Answer

Ammonium sulphate

Answer

Ammonium nitrate

Question 64

64. Ammonium nitrate fertilizer is not used for which crop

Answer

Paddy rice

Answer

Sugar cane

Answer 127

Freidrik Miescher

Answer 128

Humphry Davy

Answer 129

Joseph Aspdin

Answer 130

Of non-availability

Answer 131

Of water pollution

Answer 132

It deteriorates on health

Answer 133

Of high cost

Answer 134

Diammonium phosphate

Answer 135

Calcium super phosphate

Answer 136

Potassium nitrate

Answer 137

Dry process

Answer 138

Wet process

Answer 139

4g – 40g

Answer 140

6g – 200g

Answer 141

4kg – 40kg

Answer 142

6g – 200kg

Answer 143

Evaporation

Answer 144

Condensation

Answer 145

Crystallization

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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