Take 5 chapter-wise practice tests of 25 questions each on General Principles and Processes of Isolation of Elements for NEET with +4/-1 scoring, answer review, and concise explanations.
5 original practice tests, 25 questions each, NEET 4/-1 marking, and answer review after submission.
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1. An ore is a mineral from which metal can be extracted:
Explanation: That is the practical distinction used in metallurgy.
2. Removal of gangue from ore before extraction is called:
Explanation: The ore is enriched before reduction.
3. Calcination is generally heating of ore in:
Explanation: It is often used for carbonates and hydrated ores.
4. Roasting is generally heating of sulfide ores in:
Explanation: Sulfides are converted into oxides or sulfates.
5. A flux is added during smelting mainly to:
Explanation: Flux combines with gangue to form fusible slag.
6. Slag is generally formed by reaction of:
Explanation: This removes impurities during extraction.
7. Carbon monoxide acts as reducing agent in metallurgy because it:
Explanation: It reduces many oxides to metals.
8. Thermite reduction commonly uses:
Explanation: Aluminium reduces oxides like Fe$_2$O$_3$ strongly.
9. The Ellingham diagram mainly compares oxide stability through:
Explanation: It predicts reduction feasibility.
10. A metal oxide can be reduced by carbon if carbon oxidation line lies:
Explanation: Lower 螖G means the reducing reaction is feasible.
11. Electrolytic refining is commonly used for:
Explanation: Impure copper is anode and pure copper is cathode.
12. Zone refining is especially useful for metals required in very high purity such as:
Explanation: Impurities concentrate in the molten zone.
13. Mond process is used for refining:
Explanation: It forms volatile nickel carbonyl.
14. Van Arkel method is used for refining:
Explanation: Volatile iodides decompose on hot filament.
15. Bauxite is purified by leaching in:
Explanation: Alumina is extracted from bauxite solution route.
16. Aluminium is extracted from alumina by:
Explanation: Hall-Heroult process is used.
17. Cryolite is added in aluminium extraction mainly to:
Explanation: Pure alumina has a very high melting point.
18. Copper matte mainly contains:
Explanation: It is an intermediate in copper extraction.
19. Froth flotation is mainly used for concentration of:
Explanation: Ore particles are preferentially wetted by oil.
20. Cyanide process is used for extraction of:
Explanation: It forms soluble complex cyanides.
21. Earthy impurities associated with ore are called:
Explanation: Gangue must be removed before extraction.
22. Self-reduction process is seen in extraction of some:
Explanation: Part of sulfide is oxidized and then reduces remaining oxide.
23. A strong scoring method in metallurgy is to separate concentration, reduction, and:
Explanation: This mirrors the chapter workflow.
24. The most common direct NEET asks from metallurgy are named processes, refining methods, and:
Explanation: Stepwise extraction logic dominates the chapter.
25. A refractory lining in furnaces is chosen mainly for:
Explanation: Furnaces operate at high temperatures.
26. An ore is a mineral from which metal can be extracted:
Explanation: That is the practical distinction used in metallurgy.
27. Removal of gangue from ore before extraction is called:
Explanation: The ore is enriched before reduction.
28. Calcination is generally heating of ore in:
Explanation: It is often used for carbonates and hydrated ores.
29. Roasting is generally heating of sulfide ores in:
Explanation: Sulfides are converted into oxides or sulfates.
30. A flux is added during smelting mainly to:
Explanation: Flux combines with gangue to form fusible slag.
31. Slag is generally formed by reaction of:
Explanation: This removes impurities during extraction.
32. Carbon monoxide acts as reducing agent in metallurgy because it:
Explanation: It reduces many oxides to metals.
33. Thermite reduction commonly uses:
Explanation: Aluminium reduces oxides like Fe$_2$O$_3$ strongly.
34. The Ellingham diagram mainly compares oxide stability through:
Explanation: It predicts reduction feasibility.
35. A metal oxide can be reduced by carbon if carbon oxidation line lies:
Explanation: Lower 螖G means the reducing reaction is feasible.
36. Electrolytic refining is commonly used for:
Explanation: Impure copper is anode and pure copper is cathode.
37. Zone refining is especially useful for metals required in very high purity such as:
Explanation: Impurities concentrate in the molten zone.
38. Mond process is used for refining:
Explanation: It forms volatile nickel carbonyl.
39. Van Arkel method is used for refining:
Explanation: Volatile iodides decompose on hot filament.
40. Bauxite is purified by leaching in:
Explanation: Alumina is extracted from bauxite solution route.
41. Aluminium is extracted from alumina by:
Explanation: Hall-Heroult process is used.
42. Cryolite is added in aluminium extraction mainly to:
Explanation: Pure alumina has a very high melting point.
43. Copper matte mainly contains:
Explanation: It is an intermediate in copper extraction.
44. Froth flotation is mainly used for concentration of:
Explanation: Ore particles are preferentially wetted by oil.
45. Cyanide process is used for extraction of:
Explanation: It forms soluble complex cyanides.
46. Earthy impurities associated with ore are called:
Explanation: Gangue must be removed before extraction.
47. Self-reduction process is seen in extraction of some:
Explanation: Part of sulfide is oxidized and then reduces remaining oxide.
48. A strong scoring method in metallurgy is to separate concentration, reduction, and:
Explanation: This mirrors the chapter workflow.
49. The most common direct NEET asks from metallurgy are named processes, refining methods, and:
Explanation: Stepwise extraction logic dominates the chapter.
50. A refractory lining in furnaces is chosen mainly for:
Explanation: Furnaces operate at high temperatures.
51. An ore is a mineral from which metal can be extracted:
Explanation: That is the practical distinction used in metallurgy.
52. Removal of gangue from ore before extraction is called:
Explanation: The ore is enriched before reduction.
53. Calcination is generally heating of ore in:
Explanation: It is often used for carbonates and hydrated ores.
54. Roasting is generally heating of sulfide ores in:
Explanation: Sulfides are converted into oxides or sulfates.
55. A flux is added during smelting mainly to:
Explanation: Flux combines with gangue to form fusible slag.
56. Slag is generally formed by reaction of:
Explanation: This removes impurities during extraction.
57. Carbon monoxide acts as reducing agent in metallurgy because it:
Explanation: It reduces many oxides to metals.
58. Thermite reduction commonly uses:
Explanation: Aluminium reduces oxides like Fe$_2$O$_3$ strongly.
59. The Ellingham diagram mainly compares oxide stability through:
Explanation: It predicts reduction feasibility.
60. A metal oxide can be reduced by carbon if carbon oxidation line lies:
Explanation: Lower 螖G means the reducing reaction is feasible.
61. Electrolytic refining is commonly used for:
Explanation: Impure copper is anode and pure copper is cathode.
62. Zone refining is especially useful for metals required in very high purity such as:
Explanation: Impurities concentrate in the molten zone.
63. Mond process is used for refining:
Explanation: It forms volatile nickel carbonyl.
64. Van Arkel method is used for refining:
Explanation: Volatile iodides decompose on hot filament.
65. Bauxite is purified by leaching in:
Explanation: Alumina is extracted from bauxite solution route.
66. Aluminium is extracted from alumina by:
Explanation: Hall-Heroult process is used.
67. Cryolite is added in aluminium extraction mainly to:
Explanation: Pure alumina has a very high melting point.
68. Copper matte mainly contains:
Explanation: It is an intermediate in copper extraction.
69. Froth flotation is mainly used for concentration of:
Explanation: Ore particles are preferentially wetted by oil.
70. Cyanide process is used for extraction of:
Explanation: It forms soluble complex cyanides.
71. Earthy impurities associated with ore are called:
Explanation: Gangue must be removed before extraction.
72. Self-reduction process is seen in extraction of some:
Explanation: Part of sulfide is oxidized and then reduces remaining oxide.
73. A strong scoring method in metallurgy is to separate concentration, reduction, and:
Explanation: This mirrors the chapter workflow.
74. The most common direct NEET asks from metallurgy are named processes, refining methods, and:
Explanation: Stepwise extraction logic dominates the chapter.
75. A refractory lining in furnaces is chosen mainly for:
Explanation: Furnaces operate at high temperatures.
76. An ore is a mineral from which metal can be extracted:
Explanation: That is the practical distinction used in metallurgy.
77. Removal of gangue from ore before extraction is called:
Explanation: The ore is enriched before reduction.
78. Calcination is generally heating of ore in:
Explanation: It is often used for carbonates and hydrated ores.
79. Roasting is generally heating of sulfide ores in:
Explanation: Sulfides are converted into oxides or sulfates.
80. A flux is added during smelting mainly to:
Explanation: Flux combines with gangue to form fusible slag.
81. Slag is generally formed by reaction of:
Explanation: This removes impurities during extraction.
82. Carbon monoxide acts as reducing agent in metallurgy because it:
Explanation: It reduces many oxides to metals.
83. Thermite reduction commonly uses:
Explanation: Aluminium reduces oxides like Fe$_2$O$_3$ strongly.
84. The Ellingham diagram mainly compares oxide stability through:
Explanation: It predicts reduction feasibility.
85. A metal oxide can be reduced by carbon if carbon oxidation line lies:
Explanation: Lower 螖G means the reducing reaction is feasible.
86. Electrolytic refining is commonly used for:
Explanation: Impure copper is anode and pure copper is cathode.
87. Zone refining is especially useful for metals required in very high purity such as:
Explanation: Impurities concentrate in the molten zone.
88. Mond process is used for refining:
Explanation: It forms volatile nickel carbonyl.
89. Van Arkel method is used for refining:
Explanation: Volatile iodides decompose on hot filament.
90. Bauxite is purified by leaching in:
Explanation: Alumina is extracted from bauxite solution route.
91. Aluminium is extracted from alumina by:
Explanation: Hall-Heroult process is used.
92. Cryolite is added in aluminium extraction mainly to:
Explanation: Pure alumina has a very high melting point.
93. Copper matte mainly contains:
Explanation: It is an intermediate in copper extraction.
94. Froth flotation is mainly used for concentration of:
Explanation: Ore particles are preferentially wetted by oil.
95. Cyanide process is used for extraction of:
Explanation: It forms soluble complex cyanides.
96. Earthy impurities associated with ore are called:
Explanation: Gangue must be removed before extraction.
97. Self-reduction process is seen in extraction of some:
Explanation: Part of sulfide is oxidized and then reduces remaining oxide.
98. A strong scoring method in metallurgy is to separate concentration, reduction, and:
Explanation: This mirrors the chapter workflow.
99. The most common direct NEET asks from metallurgy are named processes, refining methods, and:
Explanation: Stepwise extraction logic dominates the chapter.
100. A refractory lining in furnaces is chosen mainly for:
Explanation: Furnaces operate at high temperatures.
101. An ore is a mineral from which metal can be extracted:
Explanation: That is the practical distinction used in metallurgy.
102. Removal of gangue from ore before extraction is called:
Explanation: The ore is enriched before reduction.
103. Calcination is generally heating of ore in:
Explanation: It is often used for carbonates and hydrated ores.
104. Roasting is generally heating of sulfide ores in:
Explanation: Sulfides are converted into oxides or sulfates.
105. A flux is added during smelting mainly to:
Explanation: Flux combines with gangue to form fusible slag.
106. Slag is generally formed by reaction of:
Explanation: This removes impurities during extraction.
107. Carbon monoxide acts as reducing agent in metallurgy because it:
Explanation: It reduces many oxides to metals.
108. Thermite reduction commonly uses:
Explanation: Aluminium reduces oxides like Fe$_2$O$_3$ strongly.
109. The Ellingham diagram mainly compares oxide stability through:
Explanation: It predicts reduction feasibility.
110. A metal oxide can be reduced by carbon if carbon oxidation line lies:
Explanation: Lower 螖G means the reducing reaction is feasible.
111. Electrolytic refining is commonly used for:
Explanation: Impure copper is anode and pure copper is cathode.
112. Zone refining is especially useful for metals required in very high purity such as:
Explanation: Impurities concentrate in the molten zone.
113. Mond process is used for refining:
Explanation: It forms volatile nickel carbonyl.
114. Van Arkel method is used for refining:
Explanation: Volatile iodides decompose on hot filament.
115. Bauxite is purified by leaching in:
Explanation: Alumina is extracted from bauxite solution route.
116. Aluminium is extracted from alumina by:
Explanation: Hall-Heroult process is used.
117. Cryolite is added in aluminium extraction mainly to:
Explanation: Pure alumina has a very high melting point.
118. Copper matte mainly contains:
Explanation: It is an intermediate in copper extraction.
119. Froth flotation is mainly used for concentration of:
Explanation: Ore particles are preferentially wetted by oil.
120. Cyanide process is used for extraction of:
Explanation: It forms soluble complex cyanides.
121. Earthy impurities associated with ore are called:
Explanation: Gangue must be removed before extraction.
122. Self-reduction process is seen in extraction of some:
Explanation: Part of sulfide is oxidized and then reduces remaining oxide.
123. A strong scoring method in metallurgy is to separate concentration, reduction, and:
Explanation: This mirrors the chapter workflow.
124. The most common direct NEET asks from metallurgy are named processes, refining methods, and:
Explanation: Stepwise extraction logic dominates the chapter.
125. A refractory lining in furnaces is chosen mainly for:
Explanation: Furnaces operate at high temperatures.