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Nidar Zaman Khan , asked a question
Subject: Chemistry , asked on 9/10/12

what is difference between valency and oxidation state with egs and detail.


Pankaj Singh , Meritnation Expert added an answer, on 10/10/12
  • Valency is the maximum number of electrons which an atom can lose or gain while oxidation state is the  actual number of electrons which the  element lose or gain to form a molecule.
  • Valency is the property of an isolated atom while oxidation state is calculated for an atom present in a molecule i.e. in bonded state.
  • Oxidation state may or may not be equal to the valency.
  • Valency of an element always remains the same, while its oxidation state may be different in different  molecules.

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