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:
Use the table above to answer the following questions about metals A, B, C and D.
(i) Which is the most reactive metal?
(ii) What would you observe, if B is added to a solution of copper(Il) sulphate?
(iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.
