CIE iGCSE Co-Ordinated Science C9.4 Reactivity series Exam Style Questions Paper 2
Question
The equation for the reaction between magnesium and zinc sulfate is shown.
Mg + ZnSO$_{4}$ Zn + MgSO$_{4}$
What happens to magnesium in this reaction?
(A) It is oxidised because it gains electrons.
(B) It is oxidised because it loses electrons.
(C) It is reduced because it gains electrons.
(D) It is reduced because it loses electrons.
▶️Answer/Explanation
Ans : B
Question
Metal X reacts with aqueous metal Y2+ ions.
The ionic equation for the reaction is shown.
X + Y2+ → X2+ + Y
What are metals X and Y?
▶️Answer/Explanation
Ans: C
Question
Elements Q, T, X and Z are metals.
The equations for three reactions between some of these metals and some oxides and chlorides of these metals are shown.
Q(s) + XO(s) → QO(s) + X(s)
T(s) + ZCl2(aq) → TCl 2(aq) + Z(s)
X(s) + TCl2(aq) → XCl 2(aq) + T(s)
Which metal has the greatest tendency to form positive ions?
(A) Q (B) T (C) X (D) Z
▶Answer/Explanation
Ans :A
Question
Silver oxide is reduced by heating with carbon more easily than copper oxide is reduced by heating with carbon.
A copper strip is placed into a solution of silver nitrate as shown.
Which row describes the reaction?
▶️Answer/Explanation
Ans: B