Question

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

Answer 1

Answer:

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Explanation:

As stated in part (a) :-  

No metal is able to displace zinc from its solution thus zinc is most rection among given metals.

Futher, only metal B is able to displace iron from iron sulphate solution. And element A can displace copper. Similarly element C can displace silver from its solution.

So the reactivity order obtained is :            D      <      C    <      A     <     B