Give the number of electrons in the species `H_2^+`,`H_2` and `O_2^+`.

What is the change in oxidation number of chlorine in the following reaction? 2H_2O_2 +ClO_4^(-)rarr2O_2+ClO_2^(-)+2H_2O

Considering H_2O as a weak field ligand, the number of unpaired electrons in [Mn(H_2O)_6]^(2+) will be (At. no. of Mn=25 )

The oxidation number of H in LiH , H_2O , H_2 and CaH_2 are __________respectively.

Find the oxidation numbers of the underlined species in the following compounds or ions. H_2S _4O_6 .

Find the oxidation numbers of the underlined species in the following compounds or ions. H _2O_2 .

Assign oxidation number to the underbracket elements in each of the following species: H_4(P)_2O_7

The oxidant and the reductant species resectively of the reactants in the reaction Br_2 + OH^- rarr Br^(-) + BrO_3^(-)+ H_2O

The valencies of the atom H,O and N are 1, 2 and 3 respectively . The molecular formulae of these gaseous elements are H_2 , O_2 and N_2 respectively. How many chemical bonds are there in each of these molecules ?

Find the oxidation numbers of the underlined species in the following compounds or ions. C _2H_5OH .

Find the oxidation numbers of the underlined species in the following compounds or ions. H_2PtCl_6 .