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Question-1
A reaction in which there is a loss of electrons is called:
(A)
oxidation
(B)
reduction
(C)
combustion
(D)
Endothermic
Question-2
Decomposition of an ionic compound by electricity is called:
(A)
electrolysis
(B)
dialysis
(C)
combustion
(D)
quenching
Question-3
Cryolite is:
(A)
Sodium chloride
(B)
Potassium dichromate
(C)
Sodium aluminium fluoride
(D)
Potassium chloride
Question-4
Ethanoic acid is a:
(A)
weak electrolyte
(B)
strong electrolyte
(C)
non-electrolyte
(D)
very weak electrolyte
Question-5
Rust is:
(A)
iron chloride
(B)
iron sulphate
(C)
iron (III) oxide
(D)
iron hydrogen
Question-6
For electroplating an object, the object must be made:
(A)
anode
(B)
cathode
(C)
electrolyte
(D)
salt
Question-7
Limestone is:
(A)
calcium oxide
(B)
calcium sulphate
(C)
calcium carbonate
(D)
Calcium hydroxide
Question-8
On electrolysis of sodium chloride solution, the deposit at cathode is:
(A)
sodium
(B)
chlorine
(C)
hydrogen
(D)
carbon
Question-9
Decomposition caused by heat energy is called:
(A)
photochemical reaction
(B)
thermal decomposition
(C)
combustion
(D)
calcination
Question-10
Combustion in which a flame is produced is:
(A)
calcination
(B)
annealing
(C)
burning
(D)
decomposition
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Cambridge Secondary Grade 10
IGCSE
Practice in Related Chapters
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Patterns and Properties of Metals
Chemical Analysis and Experimentation
Elements and Compounds
Patterns and Properties of Non-metals
Industrial Inorganic Chemistry
Organic Chemistry
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