Question

is tarnishing(blackening)of silver is useful or harmful chemical change why

Answer 1

Tarnishing of silver is considered to be not useful. It is not considered usefulbecause or else it would include regular polishing while tarnishing of silver shows significant chemical change. Silver oxides and sulphides are further divided into solids in insoluble form and appears to be black in colour.


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Answer 2

Answer:

It's a harmful chemical change..

Explanation:

Tarnishing of silver is considered to be not useful. It is not considered usefulbecause or else it would include regular polishing while tarnishing of silver shows significant chemical change. Silver oxides and sulphides are further divided into solids in insoluble form and appears to be black in colour.04-Feb-2019