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Question-1
A mineral made of Silicon and Oxygen.
(A)
Quartz
(B)
Lime
(C)
Diamond
(D)
Beryl
Question-2
The percentage of Silicon in earth's crust.
(A)
50
(B)
25.8
(C)
7.3
(D)
0.4
Question-3
The percentage of element aluminium earth's crust.
(A)
2.4
(B)
25.8
(C)
4.2
(D)
7.3
Question-4
The common name of calcium hydroxide is:
(A)
Limestone
(B)
Quick lime
(C)
Lime water
(D)
Slaked lime
Question-5
The rock form used to support the green cover of billiard tables.
(A)
Quartz
(B)
Mica
(C)
Slate
(D)
Calcite
Question-6
Molten rock is called:
(A)
Magma
(B)
Limestone
(C)
Sandstone
(D)
Quartz
Question-7
The mineral in pure limestone is:
(A)
Kaolinite
(B)
Calcite
(C)
Quartz
(D)
Mica
Question-8
Limestone is used in the extraction of:
(A)
Iron
(B)
Calcium
(C)
Magnesium
(D)
Sodium
Question-9
The lava that has 45 - 55% silica and aluminium, calcium, iron and magnesium.
(A)
Andesite
(B)
Ridges
(C)
Dykes
(D)
Basalt
Question-10
The quantity of calcium carbonate in limestone can be found by reacting it with:
(A)
Sodium chloride
(B)
Hydrochloric acid
(C)
Sodium hydroxide
(D)
Aluminium oxide
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Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Acid and Bases
The World of Matter
Simple Chemical Reactions
The Rock Cycle
Introducing Chemistry
Metals and Metal Compounds
Elements and Atoms
Separation of Mixtures
Compounds and Mixtures
Rocks and Weathering
Patterns of Reactivity
Chemistry and the Environment
Using Chemistry
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