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JEE • CHEMISTRY • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
General principles and processes of isolation of elements practice · Easy
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Practice format and chapter quiz
These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.
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61
Easy
61 of 72
Remembering
+4 | -1
Cupellation is used in the metallurgy of
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Correct option: B
Ag
Option B (Ag) is correct because cupellation is a refining process used in the metallurgy of silver (Ag) to remove base metals like lead.
62
Easy
62 of 72
Remembering
+4 | -1
The most abundant metal in the earth crust is:
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Correct option: C
Option C () is correct because Aluminum is the most abundant metal in the Earth's crust.
63
Easy
63 of 72
Remembering
+4 | -1
The phenomenon of removing layers of basic oxides from metals before electroplating is called:
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Correct option: C
Pickling
Option C (Pickling) is correct because pickling is the process of removing layers of basic oxides from metals before electroplating.
64
Easy
64 of 72
Remembering
+4 | -1
Which of the following is a carbonate ore?
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Correct option: D
Malachite
Option D (Malachite) is correct because Malachite is a copper carbonate hydroxide mineral with the formula .
65
Easy
65 of 72
Remembering
+4 | -1
The one that is not a carbonate ore is
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Correct option: D
bauxite
Option D (bauxite) is correct because bauxite is the principal ore of aluminum and is composed primarily of hydrated aluminum oxides, not a carbonate.
66
Easy
66 of 72
Remembering
+4 | -1
Sulphide ores are common for the metals
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Correct option: A
and
Option A is correct. Silver, copper, and lead are commonly found as sulfide ores such as silver glance (), copper pyrite (), and galena ().
67
Easy
67 of 72
Remembering
+4 | -1
Specific gravity of slag is:
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Correct option: B
Always less than molten metal
Option B (Always less than molten metal) is correct because slag floats on top of molten metal, indicating a lower density and thus lower specific gravity.
68
Easy
68 of 72
Remembering
+4 | -1
Muffle furnace is used in the metallurgy of
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Correct option: A
Option A () is correct because a muffle furnace is specifically used in the metallurgy of Zinc.
69
Easy
69 of 72
Remembering
+4 | -1
The ore that is concentrated by forth floatation process is
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Correct option: B
Cinnabar
Option B (Cinnabar) is correct because Cinnabar (HgS) is a sulfide ore and froth flotation is commonly used for concentrating sulfide ores.
70
Easy
70 of 72
Remembering
+4 | -1
Black Jack is an ore of
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Correct option: C
Zn
Option C (Zn) is correct because Black Jack is a common name for zinc sulfide (ZnS), an ore of zinc.
71
Easy
71 of 72
Remembering
+4 | -1
Which of the following ores does not contains oxygen?
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Correct option: B
Chalcopyrite
Option B (Chalcopyrite) is correct because Chalcopyrite () is a sulfide mineral and does not contain oxygen in its chemical formula.
72
Easy
72 of 72
Remembering
+4 | -1
The ore magnesite is:
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Correct option: D
Option D () is correct because magnesite is a mineral composed of magnesium carbonate ().
Revision notes and key takeaways
Review GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS in your textbook or class notes, then use this set to check your understanding.
Showing 61-72 of 72 questions