CIE iGCSE Co-Ordinated Science C2.4 Ions and ionic bonds Exam Style Questions Paper 2
Question
The bonding in potassium iodide is ionic.
Which row describes the potassium iodide lattice structure?
▶️Answer/Explanation
Ans: C
Question
Which statement describes the lattice structure of sodium chloride, NaCl ?
(A) It is a random arrangement of equal numbers of sodium atoms and chlorine atoms.
(B) It is a random arrangement of equal numbers of sodium ions and chloride ions.
(C) It is a regular arrangement of alternating sodium atoms and chlorine atoms.
(D) It is a regular arrangement of alternating sodium ions and chloride ions.
▶️Answer/Explanation
Ans: D
Question
Which statements about the reaction between a metal and a non-metal are correct?
1 Metal atoms gain electrons.
2 Metal atoms lose electrons.
3 The non-metal is the reducing agent.
4 The non-metal is the oxidising agent.
(A) 1 and 3
(B) 1 and 4
(C) 2 and 3
(D) 2 and 4
▶️Answer/Explanation
Ans: D
Question
Which statement about ions is not correct?
(A) Atoms form ions by gaining or losing electrons.
(B) Ions are formed by non-metal atoms only when they lose electrons.
(C) Ions in a solid ionic compound form a lattice structure.
(D) Ions with opposite charges attract each other.
▶️Answer/Explanation
Ans: B