CIE iGCSE Co-Ordinated Science C8.3 Group VII properties Exam Style Questions Paper 2
Question
Which statement about the halogens is not correct?
(A) Bromine is darker in colour than iodine.
(B) Iodine is solid at room temperature.
(C) They all have seven electrons in their outer shell.
(D) They all form diatomic molecules.
▶️Answer/Explanation
Ans : A
Question
Tennessine is a newly discovered halogen and is below astatine in Group VII of the Periodic Table.
Which row predicts the appearance of tennessine and the effect of adding aqueous potassium iodide?
▶️Answer/Explanation
Ans: B
Question
Which statements about the elements in Group VII of the Periodic Table are correct?
1. Bromine is lighter in colour than chlorine.
2. Chlorine is more reactive than bromine.
3. Chlorine displaces iodide ions from aqueous solution.
4. Iodine displaces bromide ions from aqueous solution.
(A) 1 and 2 (B) 1 and 4 (C) 2 and 3 (D) 3 and 4
▶️Answer/Explanation
Ans: C
Question
Which statements about the halogens are correct?
1 They are diatomic metals.
2 Their atoms have seven outer-shell electrons.
3 Going down the group, they change from solid to liquid to gas.
4 Going down the group, they become darker in colour.
(A) 1 and 2
(B) 1 and 3
(C) 2 and 4
(D) 3 and 4
▶️Answer/Explanation
Ans: C