To an acidified dichromate solution, a pinch of `Na_(2)O_(2)` is added and shaken. What is observed ?

To an acidified dichromate solution, a pinch of Na_(2)O_(2) is added and shaken. Na_(2)Cr_(2)O_(7) +4Na_(2)O_(2)+5H_(2)SO_(4) to 2(A)+5(B)+5H_(2)O . Compound (A) is blue coloured The sum of the total number of atoms in one molecule of (A) and (B) is

To an acidified dichromate solution, a pinch of Na_(2)O_(2) is added and shaken. Na_(2)Cr_(2)O_(7) +4Na_(2)O_(2)+5H_(2)SO_(4) to 2(A)+5(B)+5H_(2)O . Compound (A) is blue coloured The sum of the total number of atoms in one molecule of (A) and (B) is

Acidified dichromate solution turns green when sodium sulphide is added to it. Explain.

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

Acidified K_(2)Cr_(2)O_(7) solution turns green when Na_(2)SO_(3) is added to it. This is due to the formation of

Acidified K_(2)Cr_(2)O_(7) solution turns green when Na_(2)SO_(3) is added to it. This is due to the formation of

What happen when silver nitrate solution is added to Na_(2)S_(2)O_(3) solution and then content is allowed to keep for a longer period?