What is the variable valency? Give three examples of elements having variable valency.

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Solution

$V a r i a b l e v a l e n c y$ - There are some elements with more than one valency. They are said to have variable valency.
e.g, iron, copper, tin, lead

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Similar questions

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

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

Why do some elements have variable valency

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