Question

Name two metals which will displace hydrogen from dilute acids , and two metals which will not ​

Answer 1

In electrochemical series, position of Zn and iron is above hydrogen where as copper and mercury are placed below hydrogen. Hence, Zn and Fe can replace hydrogen from dilute acids whereas copper and mercury do not.

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Answer 2

Answer:

Name two metals which will displace hydrogen from dilute acids

1.In electrochemical series, position of Zn and iron is above hydrogen where as copper and mercury are placed below hydrogen. Hence, Zn and Fe can replace hydrogen from dilute acids whereas copper and mercury do not.

two metals which will not

Iron and aluminium will displace hydrogen from dilute acids as they more reactive then hydrogen. Mercury and copper cannot displace hydrogen from dilute acids as they are less reactive than hydrogen.