nursing AIIMS BSc Nursing 2025 Mock Test Series Chemistry d And f - Block Elements

Arrange the oxides CrO, CrO₃ and Cr₂O₃ in the decreasing order of acidic strength

1

CrO₃ > Cr₂O₃ > CrO

2

CrO₃ > CrO > Cr₂O₃

3

CrO > Cr₂O₃ > CrO₃

4

CrO > CrO₃ > Cr₂O₃

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