Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Ionic Bonding
143 practice questions
Topics covered
- Ionic bonding in magnesium oxide19 practice questions
- Other examples of ionic bonding19 practice questions
- Calcium chloride19 practice questions
- Formulae for ionic compounds18 practice questions
- Giant ionic structures19 practice questions
- The physical properties of ionic substances19 practice questions
- The electrical conductivity of ionic substances19 practice questions
Practice questions
131–140 of 143
Question 131
5 marks · Hard
Answer and see the solution →Lead(II) nitrate is an ionic compound. It can be either solid, molten, or dissolved in water.
(a)[2 marks]State whether lead(II) nitrate conducts electricity in each of the following states:
State Does it conduct? (Yes/No) Solid Molten Aqueous solution (b)[3 marks]Explain, in terms of ions, why lead(II) nitrate behaves in this way in these states.
Question 132
2 marks · Hard
Answer and see the solution →State the two conditions under which an ionic compound can conduct electricity.
Question 133
5 marks · Easy
Answer and see the solution →This question is about the formation of ions and charges in ionic bonding, including magnesium oxide and another compound.
(a)[1 mark]State the charge formed on a magnesium ion in magnesium oxide.
(b)[1 mark]Magnesium is in Group 2 of the Periodic Table. Explain why the charge on a magnesium ion is the value you stated in part (a).
(c)[1 mark]State the charge formed on the oxide ion in magnesium oxide.
(d)[1 mark]When potassium forms an ionic compound with chlorine, what is the formula of the ion formed by potassium? Include its charge.
(e)[1 mark]Explain, in terms of electrons, how a chlorine atom forms an ion.
Question 134
5 marks · Easy
Answer and see the solution →Ionic bonding depends on the strong attraction between oppositely charged ions. Magnesium oxide and aluminium oxide are two examples.
(a)[1 mark]State the charge on the magnesium ion and on the oxide ion in magnesium oxide.
(b)[2 marks]Explain why the electrostatic attraction in magnesium oxide is stronger than in sodium chloride.
(c)[1 mark]Aluminium oxide has the formula . State the charge on the aluminium ion and the oxide ion.
(d)[1 mark]Calculate the total positive charge and the total negative charge present in one formula unit of .
Question 135
5 marks · Easy
Answer and see the solution →This question is about common ions and how they are formed, using magnesium oxide and calcium fluoride as examples.
(a)[1 mark]Write the formula and charge of the ion formed by a magnesium atom.
(b)[1 mark]Explain why oxygen forms an ion with a negative charge.
(c)[1 mark]Calcium fluoride has the formula . What is the charge on a fluoride ion?
(d)[1 mark]Describe how calcium forms its ion. Mention what happens to its electrons.
(e)[1 mark]Sodium and sulphur can also form ions. Give the formula and charge of the ion formed by sulphur.
Question 136
5 marks · Easy
Answer and see the solution →This question is about ionic bonding in magnesium oxide and aluminium nitride.
(a)[3 marks]Draw a dot-and-cross diagram to show the ionic bonding in magnesium oxide (MgO).
Include charges on the ions.
(b)[2 marks]Aluminium is in Group 3 and nitrogen is in Group 5.
Using your answer to part (a) as a guide, describe how ions are formed when aluminium reacts with nitrogen to form aluminium nitride (AlN).
Question 137
6 marks · Normal
Answer and see the solution →This question is about the bonding and formulae for lithium fluoride and calcium chloride.
(a)[2 marks]Draw a dot-and-cross diagram to show the ionic bonding in lithium fluoride.
(b)[2 marks]Explain, using ion charges, why the formula for calcium chloride is .
(c)[2 marks]Write the formula for ammonium sulfate.
Question 138
6 marks · Normal
Answer and see the solution →This question is about the bonding and formulae of calcium chloride and other ionic compounds.
(a)[3 marks]Draw a dot-and-cross diagram to show the ionic bonding in calcium chloride ().
(b)[1 mark]State the electronic configuration of a chloride ion.
(c)[2 marks]Write the formula for copper(II) nitrate.
Question 139
6 marks · Normal
Answer and see the solution →This question is about explaining ionic bonding using calcium chloride and applying rules to deduce formulae for ionic compounds.
(a)[3 marks]Explain, in terms of electron transfer and ion formation, how calcium chloride () forms from its elements.
(b)[2 marks]Sodium oxide is another ionic compound. Write its formula and justify your answer using the charges on the ions.
(c)[1 mark]Copper(II) sulfate contains Cu2+ and SO4^2− ions. Explain why the correct formula is CuSO4.
Question 140
6 marks · Normal
Answer and see the solution →This question is about calcium chloride and how to write the formula for ionic compounds.
(a)[3 marks]Draw a dot-and-cross diagram to show how the electrons are arranged in calcium chloride (CaCl₂). Clearly show all outer shell electrons and use a key to show electrons from different atoms.
(b)[3 marks]Magnesium reacts with oxygen to form magnesium oxide. Write the formula for magnesium oxide and explain how you worked it out.