Science, asked by dineshbehra433, 7 months ago

Please give correct answer.

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Answered by vishwa12393

0

Explanation:

Certain elements have more than one valency. They exhibit variable valency. For example, copper, tin, iron and mercury exhibit variable valency.

hope it's help you

Answered by pubggrandmaster43

7

question is wrong copper is not pressent in option

question is wrong

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