Question

Find out odd one among the following ions with respect to charge of ion chromate dicromate peroxide permanganate

Answer 1

The peroxide ion, O22−, has a single oxygen-oxygen covalent bond and an oxidation state of −1 on the oxygen atoms. The peroxide ion is a powerful hydrogen ion acceptor, making the peroxides of the alkali metals and alkaline earth metals strong bases.

Answer 2

Answer:

➡️a)Chromate-CrO4 2-

b)Dichromate-Cr2O7 2-

c)peroxide-O2 -2

d)permanganate-MnO4 -

➡️Option d

Because a,b,c are divalent negative radicals.