An acidified solution of potassium chromate was layered with an equal volume of amyl alcohol. When it was shaken after the addition of 1ml of 3% `H_2O_2,` a blue alcohol layer was obtianed. The blue color is due to the formation of a chromium (VI) compound 'X'. What is the number of oxygen atoms bonded to chromium through only single bonds in a molecule of 'X' ?

When H_(2)O_(2) is shaken with an acidified solution of K_(2)Cr_(2)O_(7) in the presence of ether , the ethereal layer turns blue due to the formation of

When a solution of Na_(2)Cr_(2)O_(7) is treated with amyl alcohol and acidified H_(2)O_(2) , the layer of ayl alcohol turns blue. What is the blue colouration?

Potassium dichromate acts as a strong oxidising agent in the acidic medium. When heated with a metal chloride and conc. sulphuric acid, it gives orange red fumes. On passing these fumes through sodium hydroxide, it gives a yellow solution (X) and this acidified solution gives yellow precipitate (Y) with lead acetate. On heating potassium dichromate with KOH, it forms a yellow solution (Z) which on acidification changes to orange colour. Acidified solution of dichromate ion gives deep blue colour with H_2O_2 due to the formation of (P) The blue colour of compound P fades due to the formation of

Potassium dichromate acts as a strong oxidising agent in the acidic medium. When heated with a metal chloride and conc. sulphuric acid, it gives orange red fumes. On passing these fumes through sodium hydroxide, it gives a yellow solution (X) and this acidified solution gives yellow precipitate (Y) with lead acetate. On heating potassium dichromate with KOH, it forms a yellow solution (Z) which on acidification changes to orange colour. Acidified solution of dichromate ion gives deep blue colour with H_2O_2 due to the formation of (P) The orange red fumes obtained on heating potassium dichromate with a metal chloride and conc. H_2SO_4 is due to the formation of