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Chemistry JAMB Past Questions
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Matter and Separation Techniques
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BASIC CHEMISTRY
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General properties of metals
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Aluminium and its compound
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Metals of the first transition series
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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)
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Aromatic hydrocarbons e.g. benzene - structure, properties and uses
Alkanols: Primary, secondary, tertiary
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1211
Stainless steel is an alloy of?
A.
Iron, carbon and silver
B.
iron, carbon and lead
C.
iron, carbon and chromium
D.
iron and carbon only
View Answer & Discuss (3)
JAMB 1987
1212
Alloys are best prepared by?
A.
high temperature weilding of the metals
B.
electrolysis using the major metallic component as cathode
C.
reducing a mixture of the oxies of the elements
D.
cooling a molten mixture of the necessary elements
View Answer & Discuss (3)
JAMB 1987
1213
Corrosion is exhibited by?
A.
iron only
B.
electropostive metals
C.
metals below hydrogen inthe electrochemical series
D.
all metals
View Answer & Discuss (18)
JAMB 1987
1214
Inspite of the electronic configuration, 1s
2
2s
2
2p
2
, carbon is tetraavalent because?
A.
the electrons in both 2s and 2p orbitals have equal energy
B.
the electrons in both 2s and 2p orbitals are equivalent
C.
both the 2s and 2p orbitals hybridizes
D.
the six orbitals hybridize to four
View Answer & Discuss (7)
JAMB 1987
1215
Which of the following compounds will give a precipitate with an aqueous ammoniacal solution of copper (l) chloride?
A.
CH
3
= CHCH
3
B.
CH
3
≡ CCH
3
C.
HC = C-CH
2
CH
3
D.
CH
2
= CH-CH = CH
2
View Answer & Discuss (12)
JAMB 1987
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