The correct order of following 3d metal oxides, according to their oxidation numbers is: (a) CrO3 (b) Fe2O3 (c) MnO2…
d & f-Block Elements · Class 12 · JEE Main Previous Year Question
The correct order of following 3d metal oxides, according to their oxidation numbers is:
(a) (b) (c) (d) (e)
- a
(d) > (a) > (b) > (c) > (e)
- b
(a) > (c) > (d) > (b) > (e)
- c✓
(a) > (d) > (c) > (b) > (e)
- d
(c) > (a) > (d) > (e) > (b)
(a) > (d) > (c) > (b) > (e)
Calculating oxidation states:
| Oxide | Metal O.S. | |-------|------------| | (a) | Cr = +6 | | (b) | Fe = +3 | | (c) | Mn = +4 | | (d) | V = +5 | | (e) | Cu = +1 |
Decreasing order:
Answer: Option (3)
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