The yellow colour solution of `Na_(2)CrO_(4)` changes to orange red on passing `CO_(2)` gas due to the formation of :-

The yellow coloured solution of chromate salt changes to orange colour on acidification due to the formation of :

A solution of K _(2)CrO_(4) changes colour on being acidified. Why?

A solution of K _(2)CrO_(4) changes colour on being acidified. Why?

The yellow colour of chromates changes to orange on acidification due to the formation of

The light yellow colour of Na_2O_2 is due to

When SO_(2) gas is allowed to react with acidified potassium dichromate solution , the yellow colour of the solution changes to green. This is due to the formation of

H_2O_2 + Ti^(4+) + 2H_2O to orange colour. The orange colour is due to formation of