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WorksheetsRedox/Activity Series Practice
Total questions: 40
Worksheet time: 35mins
What is the oxidation number of chlorine in HClO?
0
-1
+1
+5
Oxidation is the _________ of electrons.
loss
gain
sharing
transfer
Reduction is the ___________ of electrons.
loss
gain
sharing
transfer
What is the oxidation number of nitrogen in N2?
-3
0
+4
-1
What is the oxidation number of iodine in KIO3?
0
-1
+5
+1
Determine the oxidation number of chromate in CrO42-.
+6
0
+2
+3
Which of the following represents oxidation?
C → CH4
Fe3+ → Fe2+
Cl2 → 2Cl-
Zn → ZnO
In the reaction Zn + 2HCl --> ZnCl2 + H2
which element, if any, is oxidized?
Zinc
Hydrogen
Chlorine
None
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________
4Fe + 3O2 --> 2Fe2O3
Ni (s) + H2O (l) →
Br2 (l) + KI (aq) →
Au (s) + HCl (l) →
Cd (s) + HCl (aq) →
Predict the product(s) of this reaction (don't worry about balancing):
Li + H2O →
Li2O + H2
LiO + H2
LiOH + H2
Li(OH)2
Predict the product(s) of this reaction (don't worry about balancing):
Mg + HCl →
MgHCl
MgCl2 + H2
MgCl2 + H
MgCl + H2
Predict the product(s) of this reaction (don't worry about balancing):
SrI2 +Br2→
Sr + I2Br2
SrBr + I2
SrBr2 + I2
Sr + IBr2
Based on the activity series, which metal could X represent in the reaction below?
X + Ca (NO3)2 --> Ca + X (NO3)2
Ba
Fe
Mg
Zn
Which metal is more reactive than calcium?
magnesium
potassium
silver
aluminum
Br2 + NaF ->
Li + NaF ->
LiBr + Na ->
What is the solvent in an aqueous solution?
An ionic compound.
Water.
Ions.
Acid.
With what type of bond is the water molecule held together?
Polar covalent bond.
Ionic bond.
Non-polar covalent bond.
Electronegative bond.
What is meant by the term "electrolyte"?
A liquid which contains free ions and can conduct an electrical current.
An ionic compound which can conduct electricity.
A salt such as NaCl(s)
Which of these does not determines the strength of an electrolyte?
The concentration of the ions in the solution.
The type of substance.
The amount of solute added to water.
The temperature of the solvent.
Which of the following solutions will conduct electricity?
Calcium chloride
Copper sulphate
Glucose
Tap water
Which reaction is NOT a neutralisation reaction
Metal + acid
Acid + Base
Acid + Metal Carbonate
Which of the following is a neutralization reaction?
2Na + Cl2 → 2NaCl
CH4 + 2O2 → CO2 + 2H2O
HCl + KOH → KCl + H2O
CaCO3 → CO2 + CaO
HCO3- + H2O → H3O+ + CO32-
Water is acting as
a Bronsted Lowry base
a Bronsted Lowry acid
a strong acid
a weak acid
