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Which statement is correct...

Which statement is correct

A

Most common oxidation state of lanthanoid is `+2`

B

HCl can be used to acidify `KMnO_(4)` during redox reaction

C

In presence of `CO_(2)`, orange dichromate solution changes to yellow chromate

D

To separate `Fe_(2)O_(3)` and `Al_(2)O_(3)`, NaOH can used

Text Solution

Verified by Experts

The correct Answer is:
D
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