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WAEC 2013
Chemistry 2013 WAEC Past Questions
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Halogen Family
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Basic Concepts of Organic Chemistry
Organic Chemistry 2
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chemical symbols, formulae, equations and their uses
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IUPAC nomenclature of inorganic compounds using oxidation number
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Electrolytes and non-electrolytes, and Faraday's laws of electrolysis
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Le Chatelier’s principle
Equilibrium constant
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Halogens: Chlorine as a representative element of the halogen
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General properties of metals
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Aluminium and its compound
Tin Extraction from its ores
Metals of the first transition series
Iron Extraction from sulphide and oxide ores
Copper Extraction from sulphide and oxide ores
Alloy
Organic Compounds
Introduction to the tetravalency of carbon
Alkanes: Homologous series in relation to physical properties
Alkenes: Isomerism (structural and geometric isomerism)
Alkynes: Ethyne
Aromatic hydrocarbons e.g. benzene - structure, properties and uses
Alkanols: Primary, secondary, tertiary
Alkanals and alkanones
Alkanoic acids
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Amines (Alkanamines): Primary, Secondary, and tertiary
Carbohydrates
Proteins: Primary structures, hydrolysis and tests
Enzymes and their functions
Polymers: Natural and synthetic rubber
Industrial Chemistry
Chemical industries: Types, raw materials and relevances
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Importance of industrial chemistry in Nigeria
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41
A hydrocarbon compound contains 92.3% carbon Determine its empirical formula [H = 1.00; C = 12.0]
A.
CH
B.
CH
2-
C.
CH
3
D.
C
3
H
2
View Answer & Discuss (6)
WAEC 2013
42
The main function of limestone in the blast furnace is to
A.
act as catalyst
B.
act as reducing agent
C.
remove impurity
D.
supply carbon (IV) oxide
View Answer & Discuss (2)
WAEC 2013
43
Which of the following raw materials is used in a plastic industry?
A.
Ethene
B.
Methane
C.
Calcium
D.
Hydrogen
View Answer & Discuss (3)
WAEC 2013
44
Which of the following statements about fine chemical is correct? It
A.
is injurious to health
B.
has low degree of purity
C.
is produced in relatively small amount
D.
can be stored for a long time
View Answer & Discuss
WAEC 2013
45
Which of the following materials is classified as a non-biodegradable pollutant?
A.
Animal hide
B.
Paper
C.
Plastic
D.
Wood
View Answer & Discuss (2)
WAEC 2013
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