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

Question

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. What is observed ?
A. blue colour
B. Orange colour changing to green
C. Copious evolution of oxygen
D. Bluish-green precipitate

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A::C
`K_(2)Cr_(2)O_(7)+H_(2) SO_(4)+Na_(2)O_(2)tounderset(("blue colour"))(CrO_(5)+K_(2)SO_(4))+Na_(2)SO_(4)+O_(2)`

4 views Answered 2023-02-05 15:29