Acidified chromic acid `+H_(2)O_(2)rarr underset(("blue colour"))(X+Y)`, X and Y are

The reaction between acidified chromic acid solution and H_(2)O_(2) gives a blue colouration due to the formation of -

When acidified dichromate is treated with H_2O_2 , a blue coloured compound is formed. It is stabilised by adding

In the reaction, Ca_(3)P_(2)+H_(2)O rarr (X) +(Y) the products (X) and (Y) are