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- 1. Multiple Choice
In a Galvanic Cell, the anode is...
positive
negative
- 2. Multiple Choice
In a Galvanic Cell, the cathode is...
positive
negative
- 3. Multiple Choice
Oxidation occurs at the...
anode
cathode
- 4. Multiple Choice
Reduction occurs at the...
anode
cathode
- 5. Multiple Choice
In a Galvanic cell, the electrons flow from the...
anode to the cathode
cathode to the anode
- 6. Multiple Choice
Ecell =
Ered - Eox
Ered + Eox
Eox - Ered
Eox + Ered
- 7. Multiple Choice
In the list of standard electrode potentials, the strongest reducing agent is...
K
K+
F2
F-
- 8. Multiple Choice
In a redox reaction, the oxidising agent... (choose two options)
is oxidised
is reduced
increases its oxidation number
decreases its oxidation number
- 9. Multiple Choice
In a Galvanic Cell, the salt bridge...
completes the circuit so that electrons can flow through the wire
maintains charge balance
is soaked in an unreactive electrolyte such as KNO3
all of the above
- 10. Multiple Choice
In the above Galvanic Cell, which half cell is undergoing reduction?
Cu | Cu2+
Zn | Zn2+
- 11. Multiple Choice
Consider the galvanic cell reaction Zn (s) + Cu2+ (aq) → Cu (s) + Zn2+ (aq) When the cell is running spontaneously, which is the only true statement?
The copper electrode loses mass and the zinc electrode is the cathode.
The copper electrode gains mass and the copper electrode is the cathode.
The zinc electrode gains mass and the zinc electrode is the anode.
The zinc electrode loses mass and the zinc electrode is the cathode.
- 12. Multiple Choice
A certain galvanic cell has for its spontaneous cell reaction: Zn + HgO → ZnO + Hg
Which is the half-reaction occurring at the anode?
HgO + 2 e- → Hg + O2-
Zn2+ + 2 e- → Zn
Zn → Zn2+ + 2 e-
ZnO + 2 e- → Zn
- 13. Multiple Choice
A certain galvanic cell has for its spontaneous cell reaction: Zn + HgO → ZnO + Hg
Which is the half-reaction occurring at the cathode?
HgO + 2 e- → Hg + O2-
Hg → Hg2+ + 2 e-
Zn → Zn2+ + 2 e-
ZnO + 2 e- → Zn
- 14. Multiple Choice
ANOTHER NAME FOR A SPONTANEOUS ELECTROCHEMICAL CELL
SALT BRIDGE
VOLTMETER
ELECTROLYSIS CELL
VOLTAIC CELL
- 15. Multiple Choice
WHICH IS ANODE?
COPPER ELECTRODE
ZINC ELECTRODE
ZINC SULFATE SOLUTION
SALT BRIDGE
- 16. Multiple Choice
If an electrochemical reaction is spontaneous, what will Ecell be?
positive
negative
- 17. Multiple ChoiceCalculate the cell potential of voltaic cell–1.51- 0.03+0.03+1.51
- 18. Multiple ChoiceVoltaic cell is made by connecting two half-cells below. Which statement is correct?Mn is oxidized and voltage is 1.06 VPb is oxidized and voltage is 1.06 VMn is oxidized and voltage is 1.32 VPb is oxidized and voltage is 1.32 V
- 19. Multiple ChoiceCalculate the cell potential of voltaic cell–1.60 V+1.60 V–3.12 V+3.12 V
- 20. Multiple Choice
As an element is oxidized, its oxidation number
decreases as electrons are lost
increases as electrons are lost
decreases as electrons are gained
increases as electrons are gained
- 21. Multiple ChoiceWhich are used for electroplating of a metal spoon with copper?I and III and IIIII and IIII, II and III
- 22. Fill in the Blank
The passage of electricity through an electrolyte causes the metallic ions to migrate towards the _______ and the non-metallic ions to migrate towards the _______. (use and in between to separate the answers)
- 23. Multiple Choice
Cations are negatively charged ions.
True
False
- 24. Multiple ChoiceWhat particle carries the charge in the electrolyte?electronprotonionatom
- 25. Multiple ChoiceWhich non-metal is often used for electrodes?carboncopperzincsilicon dioxide
- Answer choicesTagsAnswer choicesTags