WorksheetsVoltaic Cell SR2
Total questions: 10
Worksheet time: 33mins
In the voltaic cells, which pair of metals below will produce the largest cell voltage?
zinc/copper
copper/silver
aluminium/silver
magnesium/iron
Which of the following is the similarity between an electrolytic cell and a voltaic cell?
Converts electrical energy to chemical energy
Flow of electrons from negative terminal to positive terminal
Anode is negatively charged while cathode is positively charged
Carbon or platinum can be used as electrodes
When magnesium metal and copper metal are connected by wire and then immersed in copper(II) sulphate solution, which of the following does not happen?
Electron flows from copper metal to magnesium metal
Mass of copper increases
Mass of magnesium decreases
The colour intensity of blue copper(II) sulphate solution decreases
Below is the half-equation of a reaction
2Cl-(aq) --> Cl2(g) + 2e-
What is represented by the equation?
Electrons are received by chlorine
Electrons are donated by chlorine
Electrons are received by chloride ions
Electrons are donated by chloride ions
Figure shows a chemical cell. What is the energy conversion that occurs in the cell?
chemical energy --> kinetic energy
chemical energy --> electrical energy
electrical energy --> chemical energy
electrical energy --> potential energy
The diagram shows the set-up of the apparatus of a chemical cell. Which of the following occurs in the chemical cell?
The magnesium rod becomes thicker
The iron rod becomes thinner
Electrons flow from iron to magnesium
the green colour of iron(II) sulphate becomes paler
The diagram shows a chemical cell. Which half-equation represents the reaction at the positive terminal of the chemical cell?
Mg --> Mg2+ + 2e-
Zn2+ + 2e- --> Zn
2H+ + 2e- --> H2
2Cl- --> Cl2 + 2e-
The diagram shows the apparatus set-up for a simple cell after the experiment is carried out for one hour. Based on the diagram, which statement is correct?
Metal P is the cathode
Metal P is the positive terminal
Metal Q releases electrons
P can displace Q from its salt solution
The table shows the results of three voltaic cells made up of different pairs of metals. Which of the following is the order of the metals arranged in a decreasing tendency to release electrons?
Z, X, Y
Z, Y, X
X, Y, Z
X, Z, Y
The table below shows information about four voltaic cells. What is the potential difference of the voltaic cell produced when metal Q is paired with metal T?
0.8 V
1.4 V
1.9 V
3.5 V
