Chemistry, asked by Snehadudhraz, 9 months ago

Which one has variable valency? a)Pb b)Al c)Zn d)Si

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Answered by MoonxDust
4

Variable Valency Examples

Certain elements have more than one valency. They exhibit variable valency. For example, copper, tin, iron and mercury exhibit variable valency. Copper combines with oxygen to form cuprous oxide (Cu2O) and cupric oxide (CuO).

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