Physics · d and f Block Elements
Consider the following statements regarding dichromate and chromate ions: (A) Bond angle Cr-O-Cr in Cr2O72- is 126°. (B) Na2Cr2O7 is widely used as a primary standard in volumetric analysis. (C) K2Cr2O7 oxidises Fe2+ to Fe3+ in acidic medium. (D) CrO42- and Cr2O72- are interconvertible by changing pH. Select the correct statements:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A, B, D only
- 2A, B, C only
- 3B, C, D only
- 4A, C, D only✓
Correct answer
A, C, D only
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