Chemistry 5070 · O Level
Group VII properties
23 practice questions on Group VII properties, with worked solutions and instant marking.
The elements in Group VII of the Periodic Table are known as the halogens.
May/June 2018
The elements in Group VII are fluorine, chlorine, bromine and iodine.
May/June 2023
The reaction equation is shown below. $\text{Cl}_2 + 2\text{KBr} \rightarrow 2\text{KCl} + \text{Br}_2$ Which of the following statements about this reaction is correct?
May/June 2024
When chlorine is added to aqueous sodium bromide, aqueous sodium chloride and bromine are produced. Which statement about this reaction is correct?
May/June 2024
Element X is located in Period 2 of the Periodic Table. X reacts with magnesium to produce an ionic compound with the formula $\text{MgX}_2$. Which element is X?
May/June 2025
Three statements about the halogens are shown below. Which of these statements are correct?
May/June 2025
Chlorine, $\text{Cl}_2$, belongs to Group VII in the Periodic Table.
May/June 2025
What sequence shows the reactivity order of the halogens?
Oct/Nov 2015
Chlorine undergoes reaction with sodium hydroxide. $\text{Cl}_2(g) + 2\text{NaOH}(aq) \rightarrow \text{NaCl}(aq) + \text{NaClO}(aq) + \text{H}_2\text{O}(l)$
Oct/Nov 2015
What characteristic do halogens have?
Oct/Nov 2019
The table presents some properties of four Group VII elements.
Oct/Nov 2019
A drop of liquid bromine was put into a sealed glass jar. After some time, the bromine colour had spread to all parts of the jar. Explain this observation using the kinetic particle theory.
Oct/Nov 2020
Aqueous bromine is mixed with aqueous sodium chloride. Which statement is correct?
Oct/Nov 2021
The following statements concern the halogens. 1. Every halogen is a non-metallic, diatomic molecule. 2. Chlorine can displace both bromine and iodine from aqueous solutions of their salts. 3. As Group VII of the Periodic Table is descended, the halogens become more reactive. Which of these statements are correct?
Oct/Nov 2021
Phosphorus reacts with chlorine to produce phosphorus(III) chloride. $3\text{Cl}_2 + 2\text{P} \rightarrow 2\text{PCl}_3$ This reaction gives out heat.
Oct/Nov 2021
Lithium is reacted with aqueous zinc iodide. $2\text{Li} + \text{ZnI}_2 \rightarrow 2\text{LiI} + \text{Zn}$
Oct/Nov 2021
This question concerns halogens and compounds of the halogens.
Oct/Nov 2022
Which of the following statements about the Group VII halogens is true?
Oct/Nov 2023
Certain properties of Group VII elements, together with the explanations for these properties, are given. Which row correctly pairs a property with its reason?
Oct/Nov 2023
Chlorine gas is passed through separate samples of aqueous potassium iodide and aqueous potassium bromide. In which of the solutions does a colour change occur?
Oct/Nov 2025
Elements P, Q, R and S each belong to Group I or Group VII of the Periodic Table. P is liquid at r.t.p. Q is gaseous at r.t.p. Elements R and S both produce basic oxides. Element R has a higher melting point than element S. Which pair of elements reacts most vigorously?
Oct/Nov 2025
Fluorine, chlorine, bromine and iodine are all Group VII elements.
Oct/Nov 2025
Fluorine, chlorine, bromine and iodine are all Group VII elements.
Oct/Nov 2025