Find the oxidation number of (i) Cr in `K_2CrO_3`

Find the oxidation number of (i) P in H_6P_2O_7

Find out the oxidation number of bromine in Br_3O_8

What is the oxidation number of Cr in Cr_2O_7^(2-) ?

Specify the oxidation numbers of the metals in the following coordination entities: [Cr(NH_3)_3Cl_3]

Specify the oxidation numbers of the metals in the following coordination entities: K_3[Fe(CN)_6]

Arrange the following in decreasing order of oxidation number of iodine : I_2, HI, HIO_4, ICl.

Arrange the following in order of decreasing oxidation number of Nitrogen. NH_3 , N_3H , N_2O, NO , N_2O_5

Arrange the following in decreasing order of oxidation number of nitrogen N_2O, N_2O_4, NO, N_2O_3