Question

Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.

Metal	Iron (II) sulphate	Cooper (II) sulphate	Zinc sulphate	Silver nitrate
A	No reaction	Displacement
B	Displacement		No reaction
C	No reaction	No reaction	No reaction	Displacement
D	No reaction	No reaction	No reaction	No reaction

Use the Table above to answer the following questions about metals A, B, C and D.

1. Which is the most reactive metal?
2. What would you observe if B is added to a solution of copper (II) sulphate?
3. Arrange the metals A, B, C and D in the order of decreasing reactivity.

Answer 1

1. B is most reactive metal.
2. If metal B is added to copper (II) sulphate solution, it will displace copper.
3. Arrangement of metals in the order of decreasing reactivity B > A > C > D.