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Question-1
The white precipitate formed when silver nitrate solution in poured into sodium chloride solution.
(A)
Silver chloride
(B)
Sodium nitrate
(C)
Silver hydroxide
(D)
Sodium sulphate
Question-2
The black crystals obtained on heating silver chloride.
(A)
Silver hydroxide
(B)
Silver oxide
(C)
Silver
(D)
Carbon
Question-3
The gas evolved on heating potassium permanganate.
(A)
Oxygen
(B)
Hydrogen
(C)
Carbon dioxide
(D)
Nitrogen
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 reaction of iron and sulphur is an example for:
(A)
Decomposition reaction
(B)
Synthesis reaction
(C)
Neutralization reaction
(D)
Displacement reaction
Question-6
When magnesium is heated in air, the white powder formed is:
(A)
Oxide
(B)
Hydroxide
(C)
Sulphide
(D)
Oxalate
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
Water can be decomposed into hydrogen and oxygen by:
(A)
Heat
(B)
Electricity
(C)
Light
(D)
Oxides
Question-9
Atmosphere was produced by a process known as:
(A)
Big - bang
(B)
Comparison
(C)
Out - grassing
(D)
Out burst
Question-10
The reaction that occur between acid and bases are:
(A)
Synthesis reaction
(B)
Decomposition reaction
(C)
Thermal decomposition
(D)
Neutralisation
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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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