Question

what is valency?Give example of any two elements showing variable valency with their names.​

Answer 1

Explanation:

Some elements differ in their capacity to combine with other elements depending on the nature of the reaction; this property is called variable valency. For example, the iron in ferrous oxide exhibits a valency of +2, whereas in ferric oxide, it has a valency of +3.

Answer 2

Answer:

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