Match the items in Column I with relevant items in Column II.


Option (i) Ions having positive charge (e) Cation

Cations are positive charge entities in ionic compounds.


Option (ii) the sum of oxidation numberof all atoms in a neutral molecule (d) 0


The algebraic sum of all oxidation numbers of a neutral compound is equal to 0. For ionic compounds


Option (iii) Oxidation number of hydrogen ion (c) +1


Hydrogen atom is +1 charge for bonding with no9n-metals, whereas its oxidation number is -1 with metals is -1, for example metal hydrides.


Option (iv) Oxidation number of F in NaF (b) -1


For all compounds of fluorine the oxidation state is -1 as it is most electronegative element in the entire periodic table.


Option (v) Ions having negative charge (f) anion


By definition the ions having negative charge are called anion.


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