MCQ
When $S{O_2}$ is passed through acidic solution of potassium dichromate, then chromium sulphate is formed. Change in valency of chromium is
- A$+4$ to $+2$
- B$+5$ to $+3$
- ✓$+6$ to $+3$
- D$+7$ to $+2$
✓
Answer
Correct option: C.
$+6$ to $+3$
c
(c) In this reaction chromium change from $+ 6$ to $+3 $ oxidation state.
(c) In this reaction chromium change from $+ 6$ to $+3 $ oxidation state.
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