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WorksheetsRedox - Displacement of Metals
Total questions: 10
Worksheet time: 3mins
What is Electrochemical Series?
Arrangement of metals based on tendency of metal atom to release its ion and become neutral
Arrangement of metals based on tendency of metal atom to accept electron and become neutral particle
Arrangement of metals based on tendency of metal atom to release its electron and become positive ion
Arrangement of metals based on tendency of metal ion to release its charges and become neutral
Which one is NOT the uses of Electrochemical Series?
to predict the terminal of chemical cell
to predict the voltage of chemical cell
to predict the metal displacement reaction
To predict the selected ion to be neutralised at the electrode in an electrolysis
Name substance that undergoes oxidation?
Water
Zinc
Copper (II) sulphate solution
Copper (II) ion
Which substance undergoes reduction?
water
Zinc
Copper (II) sulphate solution
Sulphate ion
What is the function of Zinc in this reaction?
to accept electron
to release electron
oxidizing agent
reducing agent
What is the function of Copper (II) sulphate solution?
to release electron
to accept electron
as a reducing agent
as an oxidizing agent
Write a chemical equation involved.
Cu + ZnSO4 --> CuSO4 + Zn
Zn + CuSO4 --> ZnSO4 + Cu
Cu2+ + Zn --> Zn2+ + Cu
Zn2+ + Cu --> Zn + Cu2+
Write an ionic equation involved.
Cu + ZnSO4 --> CuSO4 + Zn
Zn + CuSO4 --> ZnSO4 + Cu
Cu2+ + Zn --> Zn2+ + Cu
Zn2+ + Cu --> Zn + Cu2+
Choose the correct observation in this reaction.
Zinc plate dissolve
Brown solid formed
blue solution turn to colourless
intensity of blue solution increases
State the changes of oxidation number for Copper in the reaction.
0 to +2
+1 to +2
+2 to 0
+2 to +1
