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Question-1
The element used as medicines to treat mental disorders.
(A)
Sodium
(B)
Lithium
(C)
Potassium
(D)
Bromine
Question-2
When ultra violet light is shown on halogen fluorine it glows weakly. This is called:
(A)
Phosphorescence
(B)
Chromatography
(C)
Diffusion
(D)
Fluorescence
Question-3
Barium compound used in medical field.
(A)
Barium chloride
(B)
Barium sulphate
(C)
Barium oxide
(D)
Barium hydroxide
Question-4
Law of conservation of mass was proposed by:
(A)
John Dalton
(B)
Pronst
(C)
Rutherford
(D)
Lavoisier
Question-5
Common salt is:
(A)
Potassium bromide
(B)
Potassium chloride
(C)
Sodium bromide
(D)
Sodium chloride
Question-6
The atom which has only one proton in its nucleus is:
(A)
Nitrogen
(B)
Helium
(C)
Argon
(D)
Hydrogen
Question-7
The element nitrogen was discovered by:
(A)
Lavoisier
(B)
Berzelis
(C)
Rutherford
(D)
Helium
Question-8
Group I elements are called as:
(A)
Alkali metals
(B)
Alkaline earth metals
(C)
Halogens
(D)
Noble gases
Question-9
The halogen used in photography.
(A)
Chlorine
(B)
Fluorine
(C)
Iodine
(D)
Bromine
Question-10
The yellow - green gas with a melting point of - 100.97
o
C is:
(A)
Bromine
(B)
Chlorine
(C)
Iodine
(D)
Astatine
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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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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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