10th Class Chemistry Chapter 16 MCQs with Answers

The following are 10th Class Chemistry Chapter 16 MCQs. We have collected these MCQs for online Test Preparation and academic as well as Competitive Exams all board exams in Pakistan, and CSS, PMS, college, and University Entrance tests, MDCAT tests, NTS tests, GAT, GRE, Entry Tests, etc. You can easily prepare yourself for any Test. These chemistry MCQs are also important for Teaching Jobs like SST, Subject Specialist, Lecturer, or Teaching Assistant. We have organized the 10th class chemistry chapter wise so you can find all the MCQs by clicking on the link of each chapter. 

10th Class Chemistry Chapter 16 MCQs with Answers

10th Class chemistry  MCQS Available Here. On these pages, you can get 10th Class chemistry MCQs with Answers.
You can read and practice, 10th Class Chemistry MCQs on Different topics, We make an Online question bank with the help of experienced teachers and subject specialists.

10th Class students of all educational boards can prepare for their exams online here on our site and by attempting these online MCQs they can make sure their preparation level for their annual exams is perfect. 10th Class Chemistry Chapters include Chapter 9 – Chemical Equilibrium, Chapter 10 – Acid, Base, and Salts, Chapter 11 – Organic Chemistry, Chapter 12 – Hydrocarbons, Chapter 13 – Biochemistry, Chapter 14 – The Atmosphere, Chapter 15 – Environmental Chemistry and Chapter 16 – Chemical Industries. 


The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials (oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products.


1 Science of extracting metals from ores is called:

(a) Gangue

(b) Metallurgy

(c) Bessemerization

(d) Calcinations

2 Fertilizers urea is used to enhance the:

(a) enhance the variety of items

(b) a & c

(c) productivity of crops

(d) None of these

3 These are used as fuel, solvent and lubricants:

(a) petrochemicals ·

(b) Fertilizers

(c) petroleum products

(d) Ores

4 Big industries in India at the time of patrician:

(a) 989

(b) 924

(c) 926

(d) 921

5 Sodium carbonate is _ producing in Jhelum:

(a) more

(b) Less

(c) enough

(d) None of these

6 ICI unit was established in:

(a) 1946

(b) 1944

(c) 1942

(d) 1947

7 Sindh alkalies limited were established in:

(a) 1966

(b) 1956

(c) 1969

(d) 1968

8 Pakistan is self-sufficient for the demand of:

(a) Sodium carbonate

(b) Sodium bicarbonate

(c) Sodium chloride

(d) Sodium hydroxide

9 In Solvay’s process, CaCl2 solution is a material:

(a) Need

(b) Waste

(c) products

(d) Reactant

10 CO2 and_ _ are recovered & reused in Solvay’s process:

(a) ammonia .

(b) Aluminum

(c) sodium

(d) NACL

11 Urea is a fertilizer:

(a) Carbonic :

(b) Nitrogenous

(c) Both a & c

(d) None of these

12 Percentage of nitrogen in urea:

(a) 46.2%

(b) 48%

(c) 41%

(d) 46.6%

13 Urea is a compound:

(a) White-crystalline

(b) Transparent

(c) blue crystalline ·

(d) none crystalline

14 Urea is a highly soluble in:

(a) Carbon dioxide

(b) Water

(c) crude oil

(d) petroleum

15 Urea is used for manufacturing of:

(a) crude oil

(b) slaked lime

(c) important chemicals

(d) None of these

16 Urea is about used as a fertilizer:

(a) 90%

(b) 93%

(c) 90.4% .

(d) 94%

17 NH3 and CO2 are the raw materials of:

(a) sodium chloride

(b) Crude oil

(c) fuel

(d) Urea

18 Ammonia is prepared by:

(a) Solvay’s process

(b) Electromagnetic separation

(c) Haber’s process

(d) Electrolysis.

19 Volume of nitrogen in Haber’s process obtain from:

(a) Water

(b) air

(c) Carbon dioxide

(d) None of these

20 Nitrogen react with hydrogen to form ammonia at:

(a) 250 atm

(b) 235 atm

(c) 300 atm

(d) 200 atm

21 Temperature required for the production of ammonia is:

(a) 400°C :

(b) 450 °C.

(c) 425 °C

(d) 500°C

22 For the formation of ammonia carbonate CO2 is passed through:

(a) Brine solution

(b) Liquid carbon

(c) liquid ammonia

(d) both a & b

23 Urea is used to make:

(a) Fire extinguisher

(b) Explosives

(c) Automobiles

(d) None of these

24 percentage of Nitrogen in air:

(a) 72%

(b) 75%

(c) 78%

(d) 81%

25 There are manufacturing units in Pakistan:

(a) Six

(b) Nine

(c) Twelve

(d) Seven

26 The biggest Fertilizer manufacturer in Pakistan is:

(a) Engro chemicals

(b) David Hercules chemicals

(c) Bin Qasim

(d) Fauji fertilizers

27 Fauji fertilizers contains : % of market shares:

(a) 55

(b) 61

(c) 56

(d) 59

28 Natural fertilizers contains natural Bio-degradable from:

(a) Nitrogen

(b) Phosphorous

(c) Live stock

(d) Potassium

29 Chemical fertilizers release very fastly:

(a) Minerals

(b) gasses

(c) Nutrients

(d) Both a&b

30 Natural fertilizers improve the structure of:

(a) Soil

(b) Ores

(c) Minerals

(d) Metals

31 Natural fertilizers are decomposed by:

(a) Fungi

(b) Algae

(c) Bacteria

(d) Ferns

32 Natural fertilizers practically do not contain:

(a) Nitrogenic Chemical

(b) Ionic Chemical in

(c) Non-ionic Chemical

(d) Toxic chemical

33 In fractional distillation crude oil is heated up to:

(a) 400°C

(b) 500°C

(c) 450 °C

(d) 425°C

34 Crude oil is separated into _ hydrocarbons:

(a) 7

(b) 6

(c) 8

(d) 9

35 Boiling point of gasoline or petrol is:

(a) 50 to 100 °C

(b) 60 to 140°C

(c) 40 to 90 °C

(d) 80 to 170 °C

36 Fuel oil boils at:

(a) 350 to 400 °C

(b) 60 to 140 °C

(c) 40 to 90 °C

(d) 80 to 170 °C

37 Ammoniacal tower contains:

(a) steam .

(b) Quick lime

(c) Slaked lime

(d) Brine

38 Sodium hydrogen carbonate decomposes to liberate gas:

(a) H2

(b) SO2

(c) CO2

(d) N2

39 Solvay’s process is

(a) Expensive process

(b) Hydrogen free

(c) Pollution free

(d) None of these

40 Solvay’s process is a

(a) Carbonating

(b) Expensive process

(c) Cheap process

(d) None of these

41 “ICI” stands for

(a) International chemical industries .

(b) Imperial chemical industry

(c) International Compound Industry

(d) None of these

42 For Electrolytic refining of copper solution is used

(a) copper oxide

(b) Copper sulphate

(c) copper dilute

(d) Copper sulphide

43 Cheap raw material for manufacturing of sodium carbonate is

(a) sulphur :

(b) Carbon

(C) aluminum

(d) limestone

44 Sodium bi carbonate heated to get

(a) lime kiln

(b) Calcium hydroxide

(c) sodium carbonate

(d) Ammonia

45 Quick lime reacts with water to form

(a) lime water .

(b) Limestone

(c) salt water.

(d) Slaked lime

46 Ferrous sulphide is oxidized to form

(a) ferric oxide

(b) ferric hydroxide

(c) ferrous oxide

(d) Ferric sulphate

47 It is used for bessemerisation of copper

(a) magnetic separation

(b) gravity separation t fumuse

(d) bersemmer convertor

48 Blister copper contains

(a) 95% pure copper

(b) 99% pure copper

(c) 98% pure copper

(d) 92% půre copper

49 Cuprous sulphate oxidizes to form

(a) cuprous sulphate

(b) Cupric oxide

(c) Cuprous oxides

(d) Cupric sulphate

50 Cuprous sulphide and ferrous sulphide form

(a) CuO.FeS

(b) CuSO4.Fes

(c) CuFeS2

(d) CuFeS

51 Molten mixture of Cu2S.Fes is called

(a) ore

(b) matte

(c) soil

(d) petroleum

52 First process involved in metallurgy is

(a) extraction of metals

(b) smelling

(c) froth forestation

(d) concentration of ore

53 Process based on wetting characteristic of ore is called

(a) Electrolytic separation

(b) smelling

(c) froth flotation

(d) Gravity separation

54 Separation of magnetic ore from non magnetic is called

(a) gravity separation

(b) electromagnetic

(c) concentrate

(d) matte

55 Brown hair contains:

(a) titanium

(b) molybdenum

(c) iron or copper compound

(d) alkali metal

56 Blonde hair contains:

(a) Titanium

(b) Molybdenum

(c) iron or copper compound

(d) Alkali metal

57 Red hair contains:

(a) Titanium

(b) Molybdenum

(c) iron or copper compound

id) Alkali metal

58 Process of extraction of metal in pure state is:

(a) Gangue

(b) Gravity separation

(c) Metallurgy

(d) Electromagnetic Separation

59 Process of removal of Gangue from ore is called:

(a) Concentrate

(b) Metallurgy

(c) Concentration

(d) ores

60 How many industries came in share of Pakistan:

(a) 36

(b) 33

(c) 34

(d) 30

61 Minerals are those solid natural metal which contains:

(a) Compound of Non-metal

(b) Compound of metal

(c) Botha &b

(d) None of these

62 Example of Ores is:

(a) NaHCO3

(b) Cu2S

(c) NaCl

(d) CaCO3

63 Cause of color of hair is presence of

(a) Iron compound

(b) titanium

(c) transition element

(d) molybdenum

64 Impurities associated with metal minerals are:

(a) Gangue

(b) metallurgy

(c) ores .

(d) minerals

65 Boiling range of fuel oil is :

(a) 250-350°C

(b) 350-400°C

(c) 400-500 °C

(d) 200-250 °C.

66 Kerosine oil is used as:

(a) laboratory solvent

(b) To form NACL

(c) jet fuel

(d) In ships

67 Composition of petroleum ether is :

(a) C to C10

(b) C5 to C7

(c) C13 to C15 .

(d) C to C4

68 They work in metallurgical industry:

(a) Inorganic chemists

(b) organic chemists .

(c) Both a and b

(d) None of these

69 NaHCO3 an heating produces :

(a) NaCO2

(b) Na2CO3

(c) Na2CO2

(d) NaCO3

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