Free Exam: TFS_Electrolysis_2017
Number of Questions in Test: 20
Number of Questions in Preview: 5
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Register nowQuestion 1
Which one of the following is true about an electrolytic cell?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 2
A student electrolyses a 1.0 mol L[sup]-1[/sup] solution of aluminium nitrate using graphite (carbon) electrodes. The gases evolved at the cathode and anode are:
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 3
A solution of cobalt chloride solution is electrolysed using inert electrodes and
hydrogen gas is liberated at the cathode. It is likely that
hydrogen gas is liberated at the cathode. It is likely that
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 4
A solution of chromium chloride was known to be contaminated with the chloride of another metal. The solution was electrolysed using graphite electrodes. A metal was deposited at the cathode and the colour of the solution remained unchanged during this time. The metal deposited was most likely
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 5
Three electrolytic cells in series contain molten aluminium chloride, copper(II) chloride and silver chloride with inert electrodes. A fixed quantity of electricity was passed through the cells. In decreasing order, the number of moles of metal deposited onto the cathode in each cell will be
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |