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Chem 5 > Variable Ox States > Flashcards

Variable Ox States Flashcards

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1
Q

Chromium can exist as

A

+2
+3
And +6

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2
Q

Chromate (VI) ions or CrO42- are what colour? How would you get to Cr2O72-?

A

1) yellow

2) add H+

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3
Q

Dichromate (VI) ions or Cr2O72- are what colour? How to get to chromate? How to get to Cr3+?

A

1) orange
2) add OH-
3) H+/Zn

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4
Q

What colour are Cr3+ ions?

A

Green

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5
Q

What colour are Cr2+ ions?

A

Blue

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Chem 5 (14 decks)

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