Chemistry
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Past Questions
Question 1986
waec 1997
a
Zinc ions
b
Chloride ions
c
Sulphide ions
d
Tetraoxosulphate (Vl) ions
e
Trioxonitrate (V) ions
Question 1988
waec 1997
a
electrons are consumed
b
oxidation is involved
c
ions are reduced
d
the electrode dissolves
e
the electrolyte is diluted
Question 1989
waec 1997
a
X>Y>Z
b
Y > X > Z
c
Z > Y > X
d
Y > Z > X
e
X > Z > Y
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