Question

define variable valency

Answer 1

The variable valency certain elements combine with other atoms, donating, accepting or sharing electrons in different proportions depending on the nature of the reaction. For example the iron combines with oxygen to form ferrous oxide as well as ferric oxide. This is termed variable valency.

Answer 2

HEYA MATE!!!

VARIABLE VALENCY :-

WHEN AN ELEMENT COMBINES WITH OTHER ELEMENT AND DONATE , ACCEPTING AND SHARING OF ELECTRONS TO ATTAIN DIFFERENT VALENCIES...

LIKE:-

WHEN IRON COMBINES WITH OXYGEN
...IT FORMS FERROUS OXIDE AS WELL AS FERRIC OXIDE...


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