Question

Caluculate the valency of H3PO4 is​

Answer 1

Apparent charge on an atom is termed as oxidation state but it also termed as valency but in valency we don't consider charge we take just its number like an atom loses three electrons and oxidation state is +3 and an atom gain three electrons and its oxidation state becomes -3, in both situations oxidation state is different but valency is same which is three. So in case of PO4(-3) ions its oxidation state is -3, so here we neglect its charge but count charge number which is three, and that number is called its valency. .

Answer 2

HERE IS UR ANSWER DEAR,

• Apparent charge on an atom is termed as oxidation state but it also termed as valency but in valency we don't consider charge we take just its number like an atom loses three electrons and oxidation state is +3 and an atom gain three electrons and its oxidation state becomes -3, in both situations oxidation state is different but valency is same which is three. So in case of PO4(-3) ions its oxidation state is -3, so here we neglect its charge but count charge number which is three, and that number is called its valency. .