Question

Explain the following: Copper and silver are below hydrogen in electrochemical series, yet they are found in the combined state as sulphides in nature.

Answer 1

Explain the following: Copper and silver are below hydrogen in electrochemical series, yet they are found in the combined state as sulphides in nature.

Ans.The reaction between sulphur and these metals becomes feasible at high temperature inside the earth. Hence, these metals exist as sulphides( in the addition to the free or native state).
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Answer 2

becoz they are less reactive but not the least . and the less reactive metals are found in form of sulphide .as they have capability to react with it only.....

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