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| Chemistry 10th Chapter 16 Chemical Industries Questions Bank |
Chemistry 10th Chapter 16 Chemical Industries Solved MCQs, Short and Long Questions
Select the right Answer.
1. ______ catalyst is used in the preparation of ammonia by Haber’s process.
2. ________ is based on the differences in densities of the metallic ore and the gangue particles.
3. __________ is based on the wetting characteristic of the ore and the gangue particles with oil and water respectively.
4. “ICI” stands for
5. Ammonia is prepared by:
6. Ammoniacal tower contains:
7. Ammonical brine is prepared by dissolving ammonia gas in:
8. Baking soda is chemically sodium:
9. Big industries in India at the time of patrician:
10. Blister copper contains
11. Blister copper is about ______ percent pure.
12. Blonde hair contains:
13. Boiling point of gasoline or petrol is:
14. Boiling range of fuel oil is :
15. Brown hair contains:
16. Cause of color of hair is presence of
17. Chalcopyrite is an ore of:
18. Cheap raw material for manufacturing of sodium carbonate is
19. Chemical fertilizers release very fastly:
20. CO₂ and_ _ are recovered & reused in Solvay’s process:
21. Composition of petroleum ether is :
22. Concentration is a
23. Concentration of copper ore is carried out by:
24. Concentration of.the copper ore is carried out by:
25. Crops need ______ to grow well.
26. Crude oil is heated in the fractionating furnace upto:
27. Crude oil is separated into _ hydrocarbons:
28. Cuprous sulphate oxidizes to form
29. Cuprous sulphide and ferrous sulphide form
30. Example of Ores is:
31. Fauji fertilizers contains : percent of market shares:
32. Ferrous sulphide is oxidized to form
33. Fertilizers urea is used to enhance the:
34. First process involved in metallurgy is
35. For Electrolytic refining of copper solution is used
36. For the formation of ammonia carbonate CO₂ is passed through:
37. Formula of baking soda is:
38. Formula of soda ash is:
39. Formula of urea is:
40. Froth fib tation process is used to concentrate the ore on:
41. Fuel oil boils at:
42. How many industries came in share of Pakistan:
43. ICI unit was established in:
44. Impurities associated with metal minerals are:
45. In electrolytic refining of copper, anode is made up of:
46. In fractional distillation crude oil is heated up to:
47. In Solvay process slaked lime or calcium hydroxide Ca(OH)₂ is used to form/recover:
48. In Solvay’s process, CaCl₂ solution is a material:
49. In Solvay's process slaked lime is used to:
50. In the bessemerization process:
51. It is used for bessemerisation of copper
52. Kerosine oil is used as:
53. Matte is the mixture of:
54. Minerals are those solid natural metal which contains:
55. Molten mixture of Cu2S.Fes is called
56. NaHCO₃ an heating produces :
57. Natural fertilizers are decomposed by:
58. Natural fertilizers contains natural Bio-degradable from:
59. Natural fertilizers improve the structure of:
60. Natural fertilizers practically do not contain:
61. NH₃ and CO₂ are the raw materials of:
62. Nitrogen react with hydrogen to form ammonia at:
63. Pakistan is self-sufficient for the demand of:
64. percentage of Nitrogen in air:
65. Percentage of nitrogen in urea:
66. Principle of Solvay’s process lies in the ______ solubility of sodium bicarbonate at _____ temperature.
67. Process based on wetting characteristic of ore is called
68. Process of extraction of metal in pure state is:
69. Process of removal of Gangue from ore is called:
70. Quick lime reacts with water to form
71. Red hair contains:
72. Science of extracting metals from ores is called:
73. Separation of magnetic ore from non magnetic is called
74. Sindh alkalies limited were established in:
75. Slag is chemically:
76. Sodium bi carbonate heated to get
77. Sodium carbonate is _ producing in Jhelum:
78. Sodium hydrogen carbonate decomposes to liberate gas:
79. Solvay’s process is
80. Solvay’s process is a
81. Temperature required for the production of ammonia is:
82. The biggest Fertilizer manufacturer in Pakistan is:
83. The chemical formula of slaked lime is:
84. The electrolytic refining of copper is carried out in an electrolytic tank having ______ solution.
85. The formula of chalcopyrite is:
86. The formula of cuprous sulphide is:
87. The nitrogen present in urea is used by plants to synthesize
88. The process of heating the concentrated ore to a high temperature in the excess of air is called:
89. The process of removal of gangue from the ore is known as:
90. The science of extracting metals from ores:
91. The solid natural materials found beneath the Earth’s surface, which contains compounds of metals in the combined state along with earthly impurities are called:
92. There are manufacturing units in Pakistan:
93. These are used as fuel, solvent and lubricants:
94. They work in metallurgical industry:
95. Urea consists of _______ nitrogen
96. Urea is a compound:
97. Urea is a fertilizer:
98. Urea is a highly soluble in:
99. Urea is about used as a fertilizer:
100. Urea is nitrogenous fertilizer. It consists of _____ nitrogen.
101. Urea is used for manufacturing of:
102. Urea is used to make:
103. Volume of nitrogen in Haber’s process obtain from:
104. When carbon dioxide is passed through an ammonical solution of NaCl called ammonical brine, _______ precipitates out.
105. When copper pyrite is heated in the excess of air ______ is/are formed.
106. When crude oil is heated in the fractionating tower:
107. When ferrous sulphide reacts with oxygen, it forms:
108. When NaHCO₃ is heated it forms CO₂, H₂O and:
109. When NaHCO₃ is heated it forms:
110. When, CO₂ is passed through the ammonical brine the only salt that
111. Which of the following is not a raw material needed for Solvay’s process?
112. Which of the following statement is incorrect about urea?
113. Which one of the following is not fraction of crude oil?
114. Which one of the following is used as jet fuel:
115. Which one of the following organic compound is found in gasoline?
116. Which one of the followings is not a fraction of petroleum?
Short Questions
1. Define concentration process used in metallurgy of copper.
2. Define Gangue and Metallurgy.
3. Define metallurgy and list out the basic metallurgical operations.
4. Define Ores. Write the names of any two ores of copper.
5. Define petroleum.
6. Describe Froth flotation process.
7. Describe the difference between diesel oil and fuel oil.
8. Describe the formation of petroleum.
9. Describe the importance of urea.
10. Explain the process of electro-refining.
11. Give the advantages of Solvay’s process.
12. Give the chemical reactions for the formation of metallic copper in bessemerization.
13. Give the reaction of formation of ammonia in the Solvay’s process.
14. Give uses of kerosene oil.
15. How are slag and matte removed from the blast furnace?
16. How is ammonia prepared for the synthesis of Urea? OR How is ammonia prepared by Haber’s process?
17. How is ammonia recovered in Solvay’s process?
18. How is ammonical brine prepared?
19. How is ammonium carbamate formed?
20. How is carbon dioxide prepared in the Solvay’s process?
21. How is CO₂ prepared in the Solvay’s process?
22. How is NaHCO₃ converted to Na₂CO₃?
23. How is roasting carried out?
24. How is slag formed during smelting?
25. How many stages are involved in the formation of urea?
26. How petroleum is extracted?
27. In how many fractions crude oil is separated?
28. Mention the chemical reactions for the formation of metallic copper in the bessemerization process.
29. Name the compound of interest obtained from Solvay process and make a list of raw material used for Solvay process.
30. Name the various metallurgical operations.
31. What do you know about Urea?
32. What do you mean by a fraction of petroleum?
33. What do you mean by anode mud?
34. What do you mean by calcination?
35. What happens when ammonical brine is carbonated?
36. What happens when ammonical brine is carbonated? Write a balanced chemical equation/s.
37. What happens when ammonium carbamate is heated with steam?
38. What happens when ammonium carbamate is heated with steam?
39. What is ammonical liquor?
40. What is blister copper?
41. What is difference between slag and matte?
42. What is matte?
43. What is meant by anode mud?
44. What is meant by electromagnetic separation?
45. What is meant by roasting of ore? Give an example of such reaction.
46. What is principle of fractional distillation?
47. What is refining of petroleum and how is it carried out?
48. What is residual oil? Write down the names of four fractions obtained by the fractional distillation of residual oil.
49. What is the difference between crude oil and residual oil?
50. What is the difference between Minerals and Ores?
51. What is the difference between slag and matte?
52. What is the percentage of nitrogen in urea?
53. What is the principle of gravity separation?
54. What is the principle of Solvay’s process?
55. What is the role of pine oil in froth floatation process?
56. When carbon dioxide is passed through the ammonical brine, only sodium bicarbonate precipitates out. Why?
57. Which petroleum fraction is used in dry cleaning?
58. Which raw materials are required for the formation of sodium carbonate?
59. Why a small amount of coke is required in the smelting process? How is slag formed during smelting?
60. Why anode is eaten up in electrorefining process?
61. Why is a small amount of coke required in the smelting process?
62. Why is lime added in the smelting process?
63. Why is the colour of hair different for different people?
64. Why only NaHCO₃ precipitates, when CO₂ is passed through the ammonical brine?
65. Write a note on granulation of urea.
66. Write down the formula of urea and ammonium carbamate.
67. Write down the names of raw material for the manufacturing of urea.
68. Write down the uses of diesel.
69. Write uses of petroleum ether.
Long Questions
1. Define refining. Write a note on fractional distillation of petroleum.
2. Describe composition and uses of petroleum gas and petrol.
3. Explain electro-refining process of copper.
4. Explain froth floatation process and roasting.
5. Explain the process of electro-refining.
6. Explain the process of smelting with reference to copper.
7. Explain three fractions of petroleum with their uses.
8. How crude oil is refined? Explain two important fractions and uses.
9. How urea is manufactured? Explain showing the flow sheet diagram.
10. State the importance of urea.
11. What is meant by ore? Describe three methods for concentration of ore.
12. Write a detailed note on ammonia Solvay’s process.
13. Write a detailed note on Bessemerization.
14. Write down the important fractions of petroleum.
15. Write the advantages of Solvay’s process.
16. Write the uses of petroleum gas and diesel oil.