Chemical bonding — IGCSE Chemistry (0971) questions by topic
Chemical bonding questions cover structure and properties: judging statements about silicon(IV) oxide's lattice and conductivity, identifying the correct dot-and-cross diagram for a nitrogen molecule's outer-shell electrons, naming which substance has a giant covalent structure such as diamond, and distinguishing giant covalent structures like graphite from ionic or molecular alternatives. State, identify, complete, give and explain want precise structural reasoning rather than surface-level description.
11 questions from 2025 papers sit here, worth between 1 and 16 marks. Because dot-and-cross and structure questions hinge on exact electron-arrangement detail, submitting an answer for instant marking flags whether a diagram or named structure, such as confusing a giant covalent lattice with a simple molecular one, has actually matched the bonding described.
May–June 2025, Paper 11
Which statements about potassium iodide are correct? 1 It is formed from potassium anions and iodide cations. 2 It is a good electrical conductor when molten or in aqueous…
Answer this question and get it marked →Which substances contain one or more shared pairs of electrons? 1 argon 2 methane 3 iron(III) oxide 4 chlorine A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4
Answer this question and get it marked →Which substance has a giant covalent structure at room temperature and pressure? A ammonia B carbon dioxide C diamond D water
Answer this question and get it marked →May–June 2025, Paper 12
When sodium chloride is formed from its elements, each chlorine atom ......1...... one ......2...... . Which words correctly complete gaps 1 and 2? 1 2 --- --- --- A gains…
Answer this question and get it marked →Which substance has a giant covalent structure? A sodium chloride B ammonia C magnesium chloride D graphite
Answer this question and get it marked →May–June 2025, Paper 21
Which statement about potassium chloride is correct? A It has a high melting point because it is a giant structure with strong covalent bonds. B It conducts electricity when solid…
Answer this question and get it marked →Which dot-and-cross diagram shows the outer shell electron arrangement in a molecule of nitrogen? Each option shows two overlapping circles labelled N (the two nitrogen atoms),…
Answer this question and get it marked →Which statement about silicon(IV) oxide is correct? A It contains silicon ions and oxide ions arranged in a giant lattice. B It is used in electrical circuits because it can…
Answer this question and get it marked →May–June 2025, Paper 32
A list of substances is shown: aluminium, bromine, calcium, carbon dioxide, iron, magnesium, magnesium oxide, neon, oxygen, potassium, sulfur dioxide Answer the following…
Answer this question and get it marked →May–June 2025, Paper 41
This question is about nitrogen and its compounds. Nitrogen contains molecules with the formula N2. Complete the dot-and-cross diagram in Fig. 4.1 to show the electronic…
Answer this question and get it marked →May–June 2025, Paper 42
This question is about covalent compounds. State what is meant by a covalent bond.
Answer this question and get it marked →Other IGCSE Chemistry topics
- Organic chemistry (31)
- The Periodic Table (29)
- Metals (23)
- Experimental techniques and chemical analysis (19)
- Chemical reactions (14)
- Acids, bases and salts (14)
- Stoichiometry (11)
- Chemistry of the environment (10)
- States of matter (9)
- Electrochemistry (9)
- Atoms, elements and compounds (8)
- Chemical energetics (8)