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Question-1
Halogens consists of:
(A)
Metals
(B)
Gases
(C)
Non - metals
(D)
Metalloids
Question-2
An antiseptic is a:
(A)
Chlorine in alcohol
(B)
Bromine in alcohol
(C)
Iodine in alcohol
(D)
Fluorine in alcohol
Question-3
The chemical formula of sodium chlorate.
(A)
NaCl
2
(B)
NaClO
(C)
NaO
2
Cl
(D)
NaCl
Question-4
The outermost electrons in halogens are:
(A)
7
(B)
8
(C)
6
(D)
5
Question-5
The element which is in solid state is:
(A)
Bromine
(B)
Fluorine
(C)
Iodine
(D)
Chlorine
Question-6
The fluorine compound used as a coating for non - stick cooking pans.
(A)
PVC
(B)
PTFE
(C)
CFCs
(D)
HF
Question-7
The most common oxidation state for the halogens is:
(A)
+2
(B)
+1
(C)
-2
(D)
-1
Question-8
Sodium chlorate is:
(A)
NaCl
(B)
Na
2
OCl
(C)
NaClO
(D)
NaHCl
Question-9
The oxidation number of chlorine in CaCl
2.
(A)
+1
(B)
-1
(C)
-2
(D)
+2
Question-10
Chlorine acid is:
(A)
HCl
(B)
HClO
(C)
HClO
2
(D)
HO
2
Cl
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Cambridge Advanced Grade 12
IGCSE
Practice in Related Chapters
Planet Earth
Atomic Structure
Group VII Elements and their Compounds
Halogenoalkanes
Basic Concepts in Organic Chemistry
Alcohols
Hydrocarbons: Alkenes
Hydrocarbons: Fuels
Reaction Rates
Enthalpy Changes
Equilibria
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