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Question-1
The percentage of Silicon in earth's crust.
(A)
50
(B)
25.8
(C)
7.3
(D)
0.4
Question-2
The rock form used to support the green cover of billiard tables.
(A)
Quartz
(B)
Mica
(C)
Slate
(D)
Calcite
Question-3
Molten rock is called:
(A)
Magma
(B)
Limestone
(C)
Sandstone
(D)
Quartz
Question-4
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
Question-5
The kind of rock formed by the effect of heat and pressure changes.
(A)
Sedimentary rocks
(B)
Metamorphic rocks
(C)
Axillary rocks
(D)
Igneous rock
Question-6
A mineral made of Silicon and Oxygen.
(A)
Quartz
(B)
Lime
(C)
Diamond
(D)
Beryl
Question-7
Gemstones among the following is:
(A)
Quartz
(B)
Gold
(C)
Beryl
(D)
Silver
Question-8
The rock formed from the shells of marine creatures and freshwater creatures.
(A)
Sandstone
(B)
Limestone
(C)
Chalk
(D)
Emeralds
Question-9
The common name of calcium hydroxide is:
(A)
Limestone
(B)
Quick lime
(C)
Lime water
(D)
Slaked lime
Question-10
Quick lime is:
(A)
Calcium carbonate
(B)
Calcium sulphate
(C)
Calcium hydroxide
(D)
Calcium 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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