Edexcel A-Level Chemistry (9CH0) · EDEXCEL 9CH0
2 Bonding and structure
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Bonding and structure
- Copper is a metal used in electrical wiring and water pipes. It is malleable, has a high m… (5 marks, Explain)
- Neon (Ne) is a simple molecular substance that exists as individual atoms. It is a gas at … (5 marks, Explain)
- Magnesium oxide is an ionic compound formed when magnesium reacts with oxygen. Explain how… (5 marks, Explain)
- Potassium iodide is an ionic compound formed when potassium reacts with iodine. Explain ho… (5 marks, Explain)
- Sodium chloride is an ionic compound. Explain how sodium chloride is formed from its eleme… (5 marks, Explain)
- Gold is a metal used in jewellery and in electronic circuit boards. Gold is malleable, has… (5 marks, Explain)
- Propane (C₃H₈) is a simple molecular substance that is a gas at room temperature. Octane (… (5 marks, Explain)
- Pentane (C₅H₁₂) and decane (C₁₀H₂₂) are both simple molecular substances. Pentane has a bo… (5 marks, Explain)
- Ethanol (C₂H₅OH) is a simple molecular substance that is liquid at room temperature. It ha… (5 marks, Explain)
- Explain why simple molecular substances, such as iodine and bromine, have low melting poin… (5 marks, Explain)
- Aluminium is a metal widely used in overhead power cables and aircraft frames. Explain, in… (5 marks, Explain)
- Sodium is a metal that is soft and has a relatively low melting point, whilst tungsten is … (5 marks, Explain)
- Explain why metals have high melting points and are good conductors of electricity. (5 marks, Explain)
- Methane (CH₄) is a covalently bonded molecule with a tetrahedral shape and bond angles of … (5 marks, Explain)
- Ammonia (NH₃) is a covalently bonded molecule with a non-linear, trigonal pyramidal shape.… (5 marks, Explain)
- Lithium fluoride is an ionic compound formed when lithium reacts with fluorine. Explain ho… (5 marks, Explain)
- Calcium chloride is an ionic compound formed when calcium reacts with chlorine. Explain ho… (5 marks, Explain)
- Water (H₂O) is a covalently bonded molecule. Explain why a water molecule has a bent (non-… (5 marks, Explain)
- Hydrogen chloride (HCl) and chlorine (Cl₂) are both covalently bonded molecules. Explain h… (5 marks, Explain)
- Phosphine (PH₃) and hydrogen sulfide (H₂S) are both covalently bonded molecules. Phosphine… (5 marks, Explain)
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