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What is Variable Valency ? Give Two Examples of Elements Showing Variable Valency. - Chemistry

Short Note

What is variable valency ? Give two examples of elements showing variable valency.

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Solution

Certain elements exhibit more than one valency, that means they show variable valency.
Ferrous is written as Iron (II) and Ferric is written as Iron (III).

Metal Radicals Valency
Iron Ferrous [Iron (II)]
Ferric [Iron (III)]
2
3
Copper Cuprous [Copper (I)]
Cupric [Copper (II)]
1
2
Concept: Formulae of Compounds
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APPEARS IN

Selina Concise Chemistry Class 8 ICSE
Chapter 5 Language of Chemistry
Exercise | Q 6 | Page 67
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