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Question-1
The reaction of iron and sulphur is an example for:
(A)
Decomposition reaction
(B)
Synthesis reaction
(C)
Neutralization reaction
(D)
Displacement reaction
Question-2
The gas used in to lift meteorological balloons into the atmosphere.
(A)
Xenon
(B)
Krypton
(C)
Neon
(D)
Helium
Question-3
The black powder obtained on heating green copper carbonate is:
(A)
Copper sulphate
(B)
Copper carbide
(C)
Copper oxide
(D)
Copper hydroxide
Question-4
2H
2
+ O
2
→ 2H
2
O. It is a:
(A)
Decomposition reaction
(B)
Synthesis reaction
(C)
Neutralization reaction
(D)
Displacement reaction
Question-5
The gas used in lights for advertising displays.
(A)
Argon
(B)
Krypton
(C)
Neon
(D)
Xenon
Question-6
The reaction in which the reactant breaks down into two or more products.
(A)
Synthesis reaction
(B)
Displacement reaction
(C)
Decomposition reaction
(D)
Neutralisation reaction
Question-7
High temperature of 3200
o
C can be achieved by heating acetylene in:
(A)
Hydrogen
(B)
Nitrogen
(C)
Helium
(D)
Oxygen
Question-8
The composition of ozone in stratosphere.
(A)
25%
(B)
18%
(C)
15%
(D)
1%
Question-9
When magnesium is heated in air, the white powder formed is:
(A)
Oxide
(B)
Hydroxide
(C)
Sulphide
(D)
Oxalate
Question-10
On heating limestone, the gas produced is:
(A)
Oxygen
(B)
Hydrogen
(C)
Nitrogen
(D)
Carbon dioxide
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Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Acid and Bases
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Simple Chemical Reactions
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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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