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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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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
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1191
When dilute hydrochloric acid is added to iron(ll)sulphide, the gas evolved will?
A.
turn moist red litmus paper blue
B.
turn lime water milky
C.
blacken lead acetate paper
D.
rekindle a glowing splint
E.
burn a sqeakly pop
View Answer & Discuss (6)
JAMB 1980
1192
In which of the following is the oxidation state of oxygen different from its value in water?
A.
OH
-
B.
H
3
O
+
C.
O
-
D.
H
2
O
2
E.
SO
2
View Answer & Discuss (10)
JAMB 1980
1193
Which of the following silver halides is readily soluble in ammonium hydroxide?
A.
Agl
B.
AgBr
C.
AgCl
D.
AgF
E.
None of the above
View Answer & Discuss (11)
JAMB 1980
1194
The chemical reaction which takes place at the anode (positive electrode) in electrolysis is?
A.
oxidation
B.
hydrolysis
C.
dissociation
D.
reduction
E.
disproportionation
View Answer & Discuss (4)
JAMB 1980
1195
Which of the following does NOT happen when a zinc rod is introduced into a solution of copper (ll) sulphate?
A.
Electrons flow towards the zinc rod
B.
The zinc rod dissolves
C.
The temperature of the soil changes
D.
The blue colour of the solution gradually disappears
E.
Copper metal is deposited
View Answer & Discuss (7)
JAMB 1980
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