Practice questions
A free sample of Brainlag Learn questions. Choose a course, then filter by topic and difficulty. Each question opens in Learn, where it is marked and explained.
1415 questions
| Practice questions | Topic | Difficulty |
|---|---|---|
| Bohr and electron shells | GCSE Chemistry: Atomic structure and the periodic table | 4 marks |
| Mendeleev's gaps and predictions | GCSE Chemistry: Atomic structure and the periodic table | 5 marks |
| Atomic weight against atomic number | GCSE Chemistry: Atomic structure and the periodic table | 4 marks |
| Why a relative atomic mass is not a whole number | GCSE Chemistry: Atomic structure and the periodic table | 4 marks |
| Group, period and metal or non-metal from electrons | GCSE Chemistry: Atomic structure and the periodic table | 4 marks |
| Halogens: melting points and states | GCSE Chemistry: Atomic structure and the periodic table | 4 marks |
| The ion an element forms | GCSE Chemistry: Bonding, structure and the properties of matter | 2 marks |
| Group number from an ion charge | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| The formula of an ionic compound | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| Numbers of each ion in a formula | GCSE Chemistry: Bonding, structure and the properties of matter | 3 marks |
| Electrons transferred in forming a compound | GCSE Chemistry: Bonding, structure and the properties of matter | 3 marks |
| Dot and cross diagram of an ionic compound | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| Electronic structure of an ion | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| The structure of an ionic compound | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| Why ionic compounds have high melting points | GCSE Chemistry: Bonding, structure and the properties of matter | 3 marks |
| When an ionic compound conducts | GCSE Chemistry: Bonding, structure and the properties of matter | 2 marks |
| Why ionic compounds conduct only when molten or dissolved | GCSE Chemistry: Bonding, structure and the properties of matter | 3 marks |
| Shared pairs and electrons in a molecule | GCSE Chemistry: Bonding, structure and the properties of matter | 2 marks |
| Double and triple covalent bonds | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| Ionic, covalent or metallic | GCSE Chemistry: Bonding, structure and the properties of matter | 1 mark |
| Ions, formula and electrons transferred | GCSE Chemistry: Bonding, structure and the properties of matter | 6 marks |
| Formulas with polyatomic ions | GCSE Chemistry: Bonding, structure and the properties of matter | 4 marks |
| Define the terms of bonding | GCSE Chemistry: Bonding, structure and the properties of matter | 3 marks |
| Dot and cross diagram of a molecule | GCSE Chemistry: Bonding, structure and the properties of matter | 6 marks |
| When does it conduct? | GCSE Chemistry: Bonding, structure and the properties of matter | 7 marks |
| Design a test for ionic and covalent substances | GCSE Chemistry: Bonding, structure and the properties of matter | 6 marks |
| Relative formula mass, brackets included | GCSE Chemistry: Quantitative chemistry and the mole | 2 marks |
| Mr of a hydrated salt | GCSE Chemistry: Quantitative chemistry and the mole | 3 marks |
| Finding an unknown Ar from an Mr | GCSE Chemistry: Quantitative chemistry and the mole | 3 marks |
| What Mr means | GCSE Chemistry: Quantitative chemistry and the mole | 1 mark |
Questions are shared by every board that teaches the topic.