Total number of Cr–O bonds in Chromate ion and dichromate ion is.

Structure of dichromate ion is:

Hybridisation of chromium ions in chromate and dichromate ions is respectively

Hybridisation of chromium ions in chromate and dichromate ions is respectively

Hybridisation of chromium ions in chromate and dichromate ions is respectively

The shape of chromate ion is

Draw the structure of : (i) chromate ion and (ii) dichromate ion.

The inter convertibility of chromate ion and dichromate ion in aqueous solution depends upon pH of the solution . Explain.