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Matter and Separation Techniques
Particulate Nature of Matter
BASIC CHEMISTRY
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Periodic Table
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Carbon - Carbon Compounds
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Phosphorus - Phosphorus Compounds
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Halogen Family
Silicon and its Compounds
Metals and their Compounds 1
Transition Metals and their Compounds
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Basic Concepts of Organic Chemistry
Organic Chemistry 2
Applied Chemistry
Chemical Industry
The Solar System
Separation of mixtures and purification of chemical substance
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Elements, compounds and mixtures
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Law of conservation of matter
Gay Lussac's law of combining volumes
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chemical symbols, formulae, equations and their uses
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The mole concept and Avogadro's number
Kinetic Theory of Matter and Gas Laws
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Change of States of matter
Phenomena Supporting Kinetic theory-Diffusion and Osmosis
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Atomic Structure and Bonding
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Shapes of S and P orbitals
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Shapes of simple molecules
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Water of crystallization, efflorescence, deliquescence and hygroscopy
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Hydrolysis of salts
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Oxidation and reduction in terms of electron transfer
Use of oxidation numbers in defining REDOX reactions and balancing simple equations.
IUPAC nomenclature of inorganic compounds using oxidation number
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Electrolysis
Electrolytes and non-electrolytes, and Faraday's laws of electrolysis
Electrolysis of dilute H2SO4, aqueous CuSO4, CuCl2 solution, dilute and concentrated NaCl solutions and fused NaCl
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Electrochemical cells: Redox series
Half-cell reactions and electrode potentials
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Definition of the following terminologies: systems, reactions and dynamic equilibrium.
Properties of a system in equilibrium
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Le Chatelier’s principle
Equilibrium constant
Non-metals and their compounds
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Halogens: Chlorine as a representative element of the halogen
Oxygen and Oxides
Sulphur and its compound
Nitrogen and its compounds
Carbon: Allotropes, Uses and properties.
Metals and their compounds
General properties of metals
Alkali metals e.g. sodium
Alkaline-earth metals
Aluminium and its compound
Tin Extraction from its ores
Metals of the first transition series
Iron Extraction from sulphide and oxide ores
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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
Alkanoates
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
Economics of Industrial process
Importance of industrial chemistry in Nigeria
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201
Which of the following gases are diatomic except
A.
nitrogen
B.
helium
C.
hydrogen
D.
fluorine
E.
oxygen
View Answer & Discuss (2)
WAEC 1993
202
Which of the following is correct about the electrons in the 1s orbital? They
A.
have the same spin
B.
are easier to remove than those in the 2p orbital
C.
are closest to the nucleus
D.
have the same energy as those in the 2s orbital
E.
have different magnetic quantum numbers
View Answer & Discuss
WAEC 1993
203
The product of the reaction between ethanol and excess acidified K\(_2\)Cr\(_2\)O\(_7\) is
A.
ethanal
B.
ethylethanoate
C.
ethanoic acid
D.
ethyne
E.
ethanedioic acid
View Answer & Discuss (8)
WAEC 1993
204
When ammonium chloride is dissolved in water in a test tube, the tube feels colder showing that
A.
the solution is unsaturated
B.
sublimation has ocurred
C.
ammonia gas is evolved
D.
the process is endothermic
E.
condensation has occurred
View Answer & Discuss (4)
WAEC 1993
205
Zinc displaces copper from an aqueous solution of copper (ll) salt because
A.
copper is a transition element
B.
copper is a moderately reactive metal
C.
Zinc and copper have reducing prperties
D.
zinc is more reactive than copper
E.
zinc reacts with both acids and alkalis
View Answer & Discuss (2)
WAEC 1993
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