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Question-1
The energy used in photosynthesis.
(A)
Light energy
(B)
Electrical energy
(C)
Heat energy
(D)
Bunsen flame
Question-2
The black powder which is added to sulphuric acid to get a blue solution is:
(A)
Copper carbonate
(B)
Copper oxide
(C)
Copper hydroxide
(D)
Copper
Question-3
The reaction that takes place between an acid and an alkali is called:
(A)
Synthesis reaction
(B)
Displacement reaction
(C)
Neutralization reaction
(D)
Decomposition reaction
Question-4
The compound used as a laxative to ease constipation.
(A)
Magnesium sulphate
(B)
Sodium chloride
(C)
Calcium sulphate
(D)
Sodium oxide
Question-5
A material through which electricity can pass is called:
(A)
Electrical insulator
(B)
Electrical conductor
(C)
Conductor of heat
(D)
Semi conductor
Question-6
Magnesium ribbon burns in air producing a white powder of:
(A)
Hydroxide
(B)
Carbonate
(C)
Oxide
(D)
Sulphate
Question-7
The salt used in gun powder.
(A)
Sodium chloride
(B)
Potassium nitrate
(C)
Sodium sulphate
(D)
Potassium chloride
Question-8
At room temperature all metals are:
(A)
Solids
(B)
Liquids
(C)
Gases
(D)
Liquid crystals
Question-9
A material through which heat cannot pass is called a/an:
(A)
Conductor
(B)
Insulator
(C)
Semi conductor
(D)
Liquid crystals
Question-10
The chemical name of common salt is:
(A)
Potassium chloride
(B)
Sodium chloride
(C)
Potassium oxide
(D)
Sodium hydroxide
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Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Acid and Bases
The World of Matter
Simple Chemical Reactions
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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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