Q1 · Which dot-and-cross diagram represents the bonding in a molecule of carbon dioxide? 0973/22 May/June 2020
16 Which dot-and-cross diagram represents the bonding in a molecule of carbon dioxide? A B C D O C O O C O O C O O C O
1 marks
Answer: A
This question in 0973/22 May/June 2020
Q2 · Which row describes a covalent compound? 0973/21 Oct/Nov 2020
15 Which row describes a covalent compound? solubility volatility in water A high low B high high C low low D low high
1 marks
Answer: D
This question in 0973/21 Oct/Nov 2020
Q3 · The structures of some substances are shown 0973/21 May/June 2021
14 The structures of some substances are shown. water ethanol methane Which row shows the total number of different elements and the total number of atoms in the three structures? total total number of number of different atoms elements A 3 9 B 3 17 C 7 9 D 7 17
1 marks
Answer: B
This question in 0973/21 May/June 2021
Q4 · Which row explains why the melting points of covalent compounds are lower than those of… 0973/21 May/June 2021
16 Which row explains why the melting points of covalent compounds are lower than those of ionic compounds? covalent compound ionic compound A strong attractive forces strong attraction between molecules between oppositely charged ions B strong attractive forces weak attraction between molecules between oppositely charged ions C weak attractive forces strong attraction between molecules between oppositely charged ions D weak attractive forces weak attraction between molecules between oppositely charged ions
1 marks
Answer: C
This question in 0973/21 May/June 2021
Q5 · The structures of some substances are shown 0973/22 May/June 2021
14 The structures of some substances are shown. water ethanol methane Which row shows the total number of different elements and the total number of atoms in the three structures? total total number of number of different atoms elements A 3 9 B 3 17 C 7 9 D 7 17
1 marks
Answer: B
This question in 0973/22 May/June 2021
Q6 · The element phosphorus burns in air, as shown 0973/21 May/June 2023
15 The element phosphorus burns in air, as shown. 4P + 5O2 → P4O10 What does the formula P4O10 show? A a mixture of atoms of two elements B a mixture of molecules of two elements C a molecule of a compound D an atom of a compound
1 marks
Answer: C
This question in 0973/21 May/June 2023
Q7 · Which dot-and-cross diagram represents the outer-shell electrons in a molecule of… 0973/21 May/June 2024
16 Which dot-and-cross diagram represents the outer-shell electrons in a molecule of methanol? A B H H H C O H H C O H H H C D H H H C O H H C O H H H
1 marks
Answer: A
This question in 0973/21 May/June 2024
Q8 · W, X, Y and Z are diagrams representing atoms and molecules 0973/22 May/June 2024
14 W, X, Y and Z are diagrams representing atoms and molecules. W X Y Z Which statement is correct? A W and Z are molecules and X and Y are atoms. B W, X and Z are molecules and Y is an atom. C W, Y and Z are molecules and X is an atom. D X, Y and Z are molecules and W is an atom.
1 marks
Answer: C
This question in 0973/22 May/June 2024
Q9 · Which row describes the properties of a covalent compound? 0973/22 May/June 2024
15 Which row describes the properties of a covalent compound? electrical volatility conductivity when molten A high none B high high C low none D low high
1 marks
Answer: A
This question in 0973/22 May/June 2024
Q10 · What is a property of a typical covalent compound? 0973/21 Oct/Nov 2024
16 What is a property of a typical covalent compound? A low electrical conductivity B high melting point C low volatility D soluble in water
1 marks
Answer: A
This question in 0973/21 Oct/Nov 2024
Q11 · Which dot-and-cross diagram shows the outer-shell electrons in a molecule of carbon… 0973/21 Oct/Nov 2025
15 Which dot-and-cross diagram shows the outer-shell electrons in a molecule of carbon dioxide? A B C D O C O O C O O C O O C O
1 marks
Answer: A
This question in 0973/21 Oct/Nov 2025
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