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Question-1
The molecule used to bleach paper that does not have to be pure white.
(A)
Oxygen
(B)
Chlorine
(C)
Ozone
(D)
Fluorine
Question-2
The organic solvent used to colour halogens.
(A)
CFCs
(B)
Dichloro methane
(C)
Cyclohexane
(D)
Methane
Question-3
A germicide used to kill bacteria in drinking water and swimming pools is:
(A)
Bromine
(B)
Iodine
(C)
Fluorine
(D)
Chlorine
Question-4
The chemical formula of sodium chlorate.
(A)
NaCl
2
(B)
NaClO
(C)
NaO
2
Cl
(D)
NaCl
Question-5
A precipitate of silver bromide has the colour:
(A)
Cream colour
(B)
White
(C)
Yellow
(D)
Green
Question-6
An organic chemical made using chlorine which is used in refrigerants is:
(A)
Chloro ethane
(B)
Ethyl bromide
(C)
Chloro fluoro carbons
(D)
Chloroform
Question-7
An antiseptic is a:
(A)
Chlorine in alcohol
(B)
Bromine in alcohol
(C)
Iodine in alcohol
(D)
Fluorine in alcohol
Question-8
The oxidation number of chlorine in Cl
2
.
(A)
2
(B)
1
(C)
0
(D)
3
Question-9
The oxidation number of chlorine in CaCl
2
is:
(A)
-2
(B)
-3
(C)
+1
(D)
-1
Question-10
Halogens consist of:
(A)
Metals
(B)
Gases
(C)
Non - metals
(D)
Metalloids
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Cambridge Advanced Grade 11
IGCSE
Practice in Related Chapters
Atomic Structure (As)
States of Matter (As)
Hydrocarbons: Fuels
Group VII Elements and their Compounds
Hydrocarbons: Alkenes
Halogenoalkanes
Basic Concepts in Organic Chemistry
Alcohols
Enthalpy Changes
Reaction Rates
Equilibria
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