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Question-1
The first explosive used for warfare and in mining and quarrying.
(A)
Trinitrotoluene
(B)
Gun powder
(C)
Ammonium nitrate
(D)
Nitroglycerine
Question-2
The major impurity in Iron ore is:
(A)
Calcium oxide
(B)
Silica
(C)
Clay
(D)
Mud
Question-3
The process of coating an object with a layer of the more reactive metal zinc is called:
(A)
Electrolysis
(B)
Galvanisation
(C)
Chromatography
(D)
Thermal analysis
Question-4
The ore of lead is:
(A)
Galena
(B)
Haematite
(C)
Calcinite
(D)
Bauxite
Question-5
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-6
Copper is extracted from the ore:
(A)
Copper sulphide
(B)
Copper pyrites
(C)
Copper sulphate
(D)
Copper chloride
Question-7
The ore is reduced in the blast furnace by:
(A)
Oxygen
(B)
Hydrogen
(C)
Carbon monoxide
(D)
Nitrogen dioxide
Question-8
Stainless steel is an alloy of iron with:
(A)
Aluminium
(B)
Chromium
(C)
Tungsten
(D)
Tin
Question-9
An electrolytic process of extracting aluminium is:
(A)
Koope's process
(B)
Van Arkel process
(C)
Hall - Heroult process
(D)
Bauxite process
Question-10
The process of manufacture of nitric acid is called:
(A)
Koope's process
(B)
Hall's process
(C)
Ostwald process
(D)
Van Arkel process
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Cambridge Secondary Grade 9
IGCSE
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