Chromium Flashcards by Scott Wooldridge

Q

Cr3+

A

Appear green
Pale purple sol

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Cr2O7 2-

A

Orange sol
Oxidising agent - orange to green

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

CrO4 2-

A

Yellow
Formed when oxidising (Cr(OH)6)3-

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

CrO4 2- => Cr2O7 2-

A

Yellow to orange
Add H+
Add OH- to reverse

How well did you know this?

1

Not at all

2

3

4

5

Perfectly