Which statement is correctA. Most common oxidation state of lanthanoid is `+2`B. HCl can be used to acidify `KMnO_(4)` during redox reactionC. In presence of `CO_(2)`, orange dichromate solution changes to yellow chromateD. To separate `Fe_(2)O_(3)` and `Al_(2)O_(3)`, NaOH can used

Which statement is correctA. Most common oxidation state of lanthanoid

1.	Which statement is correctA. Most common oxidation state of lanthanoid is `+2`B. HCl can be used to acidify `KMnO_(4)` during redox reactionC. In presence of `CO_(2)`, orange dichromate solution changes to yellow chromateD. To separate `Fe_(2)O_(3)` and `Al_(2)O_(3)`, NaOH can used
Answer» Correct Answer - D

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Which statement is correctA. Most common oxidation state of lanthanoid is `+2`B. HCl can be used to acidify `KMnO_(4)` during redox reactionC. In presence of `CO_(2)`, orange dichromate solution changes to yellow chromateD. To separate `Fe_(2)O_(3)` and `Al_(2)O_(3)`, NaOH can used

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