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CHAPTER NO 16
CHEMICAL INDUSTRY
Encircle the most appropriate answer among the following options
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