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Question-1
The main ore of iron is:
(A)
Haematite
(B)
Calcinite
(C)
Epsom
(D)
Bauxite
Question-2
Rust is a red - brown powder consisting mainly of:
(A)
Iron(III) oxide
(B)
Iron Chloride
(C)
Iron Hydroxide
(D)
Iron sulphate
Question-3
The ore of aluminium is:
(A)
Galena
(B)
Copper pyrites
(C)
Calcinite
(D)
Bauxite
Question-4
The ore of lead is:
(A)
Galena
(B)
Haematite
(C)
Calcinite
(D)
Bauxite
Question-5
The first explosive used for warfare and in mining and quarrying.
(A)
Trinitrotoluene
(B)
Gun powder
(C)
Ammonium nitrate
(D)
Nitroglycerine
Question-6
The process used for the synthesis of ammonia.
(A)
Haber - Bosch process
(B)
Koope's process
(C)
Van - Arkel process
(D)
Hall's process
Question-7
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-8
The ore is reduced in the blast furnace by:
(A)
Oxygen
(B)
Hydrogen
(C)
Carbon monoxide
(D)
Nitrogen dioxide
Question-9
Stainless steel is an alloy of iron with:
(A)
Aluminium
(B)
Chromium
(C)
Tungsten
(D)
Tin
Question-10
An electrolytic process of extracting aluminium is:
(A)
Koope's process
(B)
Van Arkel process
(C)
Hall - Heroult process
(D)
Bauxite process
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
Nature of Matter
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Introducing Chemistry
Mixtures and Separating Techniques
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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