MCQ
Which of the following is not correctly matched
- A$CrO_5$ ; oxidation number of $Cr = +10$
- B$Fe_3O_4$ ; oxidation state of $Fe =-\frac {8}{3}$
- C$Na-Hg$ ; oxidation number of $Na$ is $= +1$
- ✓All of the above
✓
Answer
Correct option: D.
All of the above
d
$Cr = +6\, ,Fe = +2,\, +3\,, Na = 0$
$Cr = +6\, ,Fe = +2,\, +3\,, Na = 0$
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