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Question-1
The carbon content in medium steel is:
(A)
0.45 - 1.5
(B)
<0.25
(C)
0.25 - 0.45
(D)
2.5 - 4.5
Question-2
Concentrated sodium chloride solution is called:
(A)
Oleum
(B)
Brine
(C)
Galena
(D)
Vinegar
Question-3
The iron produced by the blast furnace is known as:
(A)
Wrought iron
(B)
Steel
(C)
Molten iron
(D)
Cast iron
Question-4
An electrolytic process of extracting aluminium is:
(A)
Koope's process
(B)
Van Arkel process
(C)
Hall - Heroult process
(D)
Bauxite process
Question-5
The process of manufacture of nitric acid is called:
(A)
Koope's process
(B)
Hall's process
(C)
Ostwald process
(D)
Van Arkel process
Question-6
Rust is a red - brown powder consisting mainly of:
(A)
Iron(III) oxide
(B)
Iron Chloride
(C)
Iron Hydroxide
(D)
Iron sulphate
Question-7
Sulphuric acid is manufactured by the process called:
(A)
Ostwald process
(B)
Koope's process
(C)
Contact process
(D)
Hall's process
Question-8
Copper is extracted from the ore:
(A)
Copper sulphide
(B)
Copper pyrites
(C)
Copper sulphate
(D)
Copper chloride
Question-9
The main ore of iron is:
(A)
Haematite
(B)
Calcinite
(C)
Epsom
(D)
Bauxite
Question-10
Stainless steel is an alloy of iron with:
(A)
Aluminium
(B)
Chromium
(C)
Tungsten
(D)
Tin
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
Nature of Matter
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Particle Theory
Periodic Patterns
Chemical Change
Chemical Analysis and Experimentation
Patterns and Properties of Non-metals
Petrochemicals and Polymers
Industrial Inorganic Chemistry
Organic Chemistry
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