What is variable valency? Give two examples of the elements that exhibit variable valency.

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Solution

Valency is defined as the combining capacity of an element.
Some elements have more than one valency. They are said to have variable valency.
For example, iron exhibits valency 2 ( ferrous) and valency 3 (ferric).
Copper exhibits valency 1 (cuprous) and valency 2 (cupric).

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Similar questions

How are the elements having variable valency named? Give Two examples.

(a) Explain the terms 'valency' and 'variable valency'.

(b) How are the elements with variable valency named ? Explain with an example.

Name two elements with variable valency.

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