Question

1.why is hydrogen displacement method not applicable to determine equivalent mass of copper?​

Answer 1

Answer:

Reactivity series is the reason. Explanation is given below.

Explanation:

This method is not applicable to determine the equivalent mass of less active metals which lies below hydrogen in electrochemical series like Cu, Ag, Au since they cannot displace hydrogen from non-oxidising acids. This method is applicable when metal can form oxide directly or indirectly.

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