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Question-1
The element which can exist in different crystalline forms.
(A)
Iodine
(B)
Sodium
(C)
Magnesium
(D)
Carbon
Question-2
The chemical name of common salt is:
(A)
Potassium chloride
(B)
Sodium chloride
(C)
Potassium oxide
(D)
Sodium hydroxide
Question-3
The gas evolved when zinc is added to hydrochloric acid.
(A)
Nitrogen
(B)
Oxygen
(C)
Halogen
(D)
Hydrogen
Question-4
The allotrope of carbon which conducts electricity is:
(A)
Diamond
(B)
Fullerens
(C)
Graphite
(D)
Coke
Question-5
Sulphur dioxide + Water → product
The product in the above reaction is:
(A)
Sulphurous acid
(B)
Sulphuric acid
(C)
Okum
(D)
Sulphur dioxide
Question-6
A non - metal which is a solid at room temperature.
(A)
Oxygen
(B)
Carbon
(C)
Iodine
(D)
Sulphur
Question-7
Metal oxides soluble in water are called:
(A)
Alkalis
(B)
Acids
(C)
Buffer Solution
(D)
Neutral solution
Question-8
Magnesium ribbon burns in air producing a white powder of:
(A)
Hydroxide
(B)
Carbonate
(C)
Oxide
(D)
Sulphate
Question-9
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-10
When neutralisation has occurred, the pH of solution is:
(A)
2
(B)
10
(C)
8
(D)
7
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Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Acid and Bases
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Patterns of Reactivity
Chemistry and the Environment
Using Chemistry
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