A) \[Cr{{O}_{3}}\]
B) \[Cr{{O}_{5}}\]
C) \[C{{r}_{2}}{{O}_{3}}\]
D) \[CrO\]
Correct Answer: C
Solution :
Compound | Oxidation number of Cr | Nature |
\[Cr{{O}_{3}}\] | +6 | acidic |
\[Cr{{O}_{5}}\] | +10 | acidic |
\[Cr{{O}_{3}}\] | +3 | almost amphoteric |
CrO | +2 | basic |
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