| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.sl.TZ0.25 |
| Level | SL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 25 | Adapted from | N/A |
Question
Which process occurs during the electrolysis of molten sodium chloride?
A. Oxidation occurs at the positive electrode (anode).
B. Electrons move through the electrolyte.
C. Sodium ions move through the electrolyte to the positive electrode (anode).
D. Chloride ions move through the electrolyte and are reduced at the negative electrode (cathode).
Markscheme
A
Examiners report
[N/A]
Syllabus sections
Show 72 related questions
- 17N.3.sl.TZ0.1b.iii: Outline how current flows in the sodium chloride solution.
- 17N.3.sl.TZ0.1a: Sketch a graph that would support the student’s hypothesis.
- 17N.2.sl.TZ0.2e.iii: The voltaic cell stated in part (ii) is partially shown below. Draw and label the...
- 17N.2.sl.TZ0.2e.ii: A voltaic cell is made up of a Mn2+/Mn half-cell and a Ni2+/Ni half-cell. Deduce the...
- 17N.1.sl.TZ0.23: What is the reaction type and major product at the anode (positive electrode) when molten...
- 17N.2.hl.TZ0.7b: Predict, giving a reason, the direction of movement of electrons when the standard nickel and...
- 17N.2.hl.TZ0.7a: Deduce a balanced equation for the overall reaction when the standard nickel and iodine...
- 17M.1.sl.TZ2.23: What occurs at the anode (positive electrode) during the electrolysis of molten strontium...
- 17M.1.sl.TZ1.23: Which statements are correct for a voltaic...
- 16N.2.hl.TZ0.4i: Magnesium chloride can be electrolysed. (i) Deduce the half-equations for the reactions at...
- 16N.2.sl.TZ0.4g: Magnesium chloride can be electrolysed. Deduce the half-equations for the reactions at each...
- 16N.1.sl.TZ0.22: A voltaic cell is constructed from zinc and copper half-cells. Zinc is more reactive than...
- 16M.1.hl.TZ0.31: Which...
- 16M.1.sl.TZ0.22: Which statement is correct for a voltaic but not for an electrolytic cell? A. An...
- 15M.2.hl.TZ1.6d.i: Bromine can be produced by the electrolysis of molten sodium bromide. Deduce the...
- 15M.1.sl.TZ1.25: Two half-cells are connected via a salt bridge to make a voltaic cell. Which statement about...
- 15M.1.sl.TZ2.25: A voltaic cell is made by connecting a copper half-cell,...
- 15M.2.sl.TZ1.2c: Bromine can be produced by the electrolysis of molten sodium bromide. Deduce the...
- 15M.2.sl.TZ2.3a.i: Describe, using a labelled diagram, the essential components of this electrolytic cell.
- 15M.2.sl.TZ2.3a.ii: Molten magnesium chloride can be electrolysed using inert graphite electrodes at 800...
- 14M.2.hl.TZ1.6b: (i) Deduce the order of reactivity of these four metals, from the least to the most...
- 14M.2.hl.TZ2.8g: (i) Draw a labelled diagram of a suitable apparatus for the electrolysis. (ii) ...
- 14M.1.sl.TZ1.25: At which electrodes does oxidation occur in a voltaic cell and in an electrolytic cell?
- 14M.1.sl.TZ2.25: Which process occurs when a molten salt is electrolysed? A. The metal ion is oxidized...
- 14M.1.sl.TZ2.24: Zinc is more reactive than copper. In this voltaic cell, which species is reduced and in...
- 14M.2.sl.TZ1.6d: (i) Deduce the order of reactivity of these four metals, from the least to the most...
- 14M.2.sl.TZ1.6c: (i) Draw a labelled electrolytic cell for the electrolysis of molten potassium bromide,...
- 14N.1.hl.TZ0.31: Which species are produced at each electrode during the electrolysis of molten lead(II)...
- 14N.1.sl.TZ0.25: Which statement about an electrolytic cell is correct? A. Chemical energy is converted...
- 14N.2.sl.TZ0.8c: (i) Given that magnesium is more reactive than silver, deduce the half-equations for the...
- 14N.3.sl.TZ0.8a: Deduce an equation for the discharge of the ions at each electrode. Positive electrode...
- 13N.1.sl.TZ0.25: Which statements are correct for the electrolysis of molten lead(II) bromide,...
- 13N.2.sl.TZ0.5b.iv: A voltaic cell can be constructed using cadmium and europium half-cells. State how the two...
- 13M.1.hl.TZ1.32: Which are correct statements about a voltaic cell? I. A spontaneous redox reaction...
- 13M.2.hl.TZ1.7c.i: Describe, using a diagram, the essential components of an electrolytic cell.
- 13M.2.hl.TZ1.7c.ii: Describe the two ways in which current is conducted in an electrolytic cell.
- 13M.2.sl.TZ1.3b: Sodium can be obtained by electrolysis from molten sodium chloride. Describe, using a...
- 13M.2.hl.TZ2.7e.vi: Draw a fully labelled diagram of the electrolytic cell, showing the positive electrode...
- 13M.2.hl.TZ2.7e.v: Deduce the overall cell reaction, including state symbols.
- 12N.1.sl.TZ0.24: A voltaic cell is made by connecting zinc and lead half-cells. The overall equation for the...
- 10N.2.hl.TZ0.4b: (i) Explain how molten magnesium chloride conducts an electric current. (ii) ...
- 10N.1.sl.TZ0.25: Which statement is correct for the electrolysis of molten lead iodide,...
- 10N.1.sl.TZ0.24: Metal A is more reactive than metal B. A standard voltaic cell is made as shown. Which...
- 09N.1.hl.TZ0.30: In the electrolytic cell shown, at which electrode will chlorine form, and what is the...
- 09N.2.hl.TZ0.4b.iii: On the cell diagram below, label the negative electrode (anode), the positive electrode...
- 09N.2.hl.TZ0.4a: Outline two differences between an electrolytic cell and a voltaic cell.
- 10M.2.sl.TZ1.5c: (i) Solid sodium chloride does not conduct electricity but molten sodium chloride does....
- 10M.2.sl.TZ1.5a: (i) Draw an annotated diagram of a voltaic cell composed of a magnesium electrode in...
- 10M.1.sl.TZ2.26: Which changes could take place at the positive electrode (cathode) in a voltaic cell? I. ...
- 10M.2.sl.TZ2.5c: (i) Determine the oxidation number of lead in Pb,...
- 09M.2.hl.TZ1.7d.i: concentrated sodium chloride
- 09M.2.hl.TZ1.7d.ii: molten sodium bromide
- 09M.1.sl.TZ1.25: Consider how current is conducted in an electrolytic cell. Which statement is correct? A. ...
- 09M.2.sl.TZ1.3b: Molten sodium oxide is a good conductor of electricity. State the half-equation for the...
- 09M.1.sl.TZ1.24: What happens at the negative electrode in a voltaic cell and in an electrolytic cell?
- 09M.2.hl.TZ2.6c.i: Outline two differences between an electrolytic cell and a voltaic cell.
- 09M.2.sl.TZ2.5b.iv: Molten sodium chloride undergoes electrolysis in an electrolytic cell. For each electrode...
- 09M.2.sl.TZ2.5b.ii: Describe using a labelled diagram, the essential components of an electrolytic cell.
- 09M.2.sl.TZ2.5b.v: Electrolysis has made it possible to obtain reactive metals such as aluminium from their...
- 09M.2.sl.TZ2.5b.vi: Outline two differences between an electrolytic cell and a voltaic cell.
- 11M.2.hl.TZ1.9a.i: Draw an electrolytic cell illustrating the electrolysis of molten nickel(II) bromide,...
- 11M.1.sl.TZ1.24: Consider the overall reaction taking place in a voltaic...
- 11M.2.hl.TZ2.7c.i: Draw a labelled diagram of a voltaic cell made from an Fe (s) /...
- 11M.2.hl.TZ2.7c.ii: Deduce the equation for the chemical reaction occurring when the cell in part (c) (i) is...
- 11M.2.hl.TZ2.7e.i: Explain why it is very difficult to obtain sodium from sodium chloride by any other method.
- 11M.1.sl.TZ2.25: Which statement about the electrolysis of molten sodium chloride is correct? A. A...
- 11M.2.sl.TZ2.5b.i: Draw a labelled diagram of a voltaic cell made from an...
- 11M.2.sl.TZ2.5b.ii: Deduce the half-equations for the reactions taking place at the positive electrode (cathode)...
- 12M.1.sl.TZ2.25: What occurs during the operation of a voltaic cell based on the following overall...
- 11N.2.sl.TZ0.3a.i: Draw the essential components of this electrolytic cell and identify the products that form...
- 11N.2.sl.TZ0.3a.ii: State the half-equations for the oxidation and reduction processes and deduce the overall...
- 11N.1.sl.TZ0.24: What is produced at the positive electrode (anode) and negative electrode (cathode) during...
