
Electrolysis
Authored by David Wilson
Chemistry
12th Grade
Used 27+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
During the electrolysis of molten sodium chloride what is produced at the cathode?
Na (s)
Cl (g)
Cl2 (g)
Na (l)
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which is the correct half equation for the anode during the electrolysis of molten lead bromide?
Pb2+ + 2e- --> Pb (l)
2Br - + 2e - --> Br2 (g)
Pb2+ --> Pb (l) + 2e-
2Br - --> Br2 (g) + 2e -
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Electrolysis of which does not give Cl2(g) at the anode?
concentrated NaCl(aq)
NaCl (l)
dilute NaCl(aq)
PbCl2 (l)
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which determines what is discharged at an electrode?
the relative Eo values of the ions
the concentration of the ions in the electrolyte
the nature of the electrode
all of the above
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
During the electrolysis of CuSO4(aq) with inert electrodes
Cu(s) is formed at the cathode and the solution stays blue
Cu(s) is formed at the anode and the solution becomes paler
Oxygen is formed at the anode and the solution stays blue
Oxygen is formed at the anode and the solution becomes paler
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the electrolysis of CuSO4(aq) with copper electrodes
the cathode increases in mass
the cathode decreases in mass
the anode increases in mass
the solution becomes paler
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 Faraday is:
The charge carried by I mole of electrons
96,500 C
required to turn 1 mole of sodium ions into sodium atoms
all of the above
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