STRUCTURE OF CHROMATE & DICHROMATE

The dichromate ion is in cquilibrium with chromate ion in aqucous Solution as: Cr_(2)O_(7)^(2-) (aq) + H_(2)O hArr 2 CrO_(4)^(2-)(aq) + 2H^(+)(aq) The oxonion has

The structures of chromate and dichromate ions are A and B respectively. Here, A and B refer to

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

What is the structure of chromate ion CrO_4^(2-) ?

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

What is the action of acidified potassium dichromate on : (a ) SO_(2) (b ) KI Draw structure of dichromate ion .

Which of the following statement (s) is /are correct? (I) In acidic solution dichromate ions are converted to chromate ions . (II) An acidified solution of K_(2)Cr_(2)O_(7) liberates iodine from iodides. (III) Potassium dichromate is used as a titrant for Fe^(2+) ions. (IV) Ammonium dichromate on heating undergo exothermic decomposition to give Cr_(2)O_(3) . Choose the correct option .