Transition Metal Colours

Question 1

What colour are Vanadium’s different oxidation states in descending order?

Answer 1

You Better Get Vanadium
Yellow Blue Green Violet

Question 2

What colours are Chromium’s different oxidation states!

Answer 2

Cr2O7 -2 (dichromate) is orange
CrO -4 (chromate) is yellow
Cr +3 is green
Cr +2 is blue

Question 3

What colour is Fe2+ (aq)?

Answer 3

Pale green

Question 4

What colour is Fe2+ and OH-?

Answer 4

Dark green precipitate

Question 5

What colour is Fe3+ (aq)?

Answer 5

Yellow

Question 6

What colour is Fe3+ and OH-?

Answer 6

Brown precipitate

Question 7

What colour is Cu2+ (aq)?

Answer 7

Blue

Question 8

What colour is Cu2+ and OH-?

Answer 8

blue precipitate

Question 9

What colour is Cu2+ and XS NH3?

Answer 9

Dark blue solution

Question 10

What colour is Cu2+ and Cl-?

Answer 10

Highlighter yellow/neon green

Question 11

What colour is Co2+ (aq)?

Answer 11

Pink

Question 12

What colour is Co2+ and OH-?

Answer 12

Dark blue precipitate

Question 13

What colour is Co2+ and XS NH3?

Answer 13

Brown solution

Question 14

What colour is Co2+ and Cl-?

Answer 14

Blue solution

Question 15

What colour is Cr3+ (aq)?

Answer 15

Green

Question 16

What colour is Cr3+ and OH-?

Answer 16

Dark green precipitate

Question 17

Wat colour is Cr3+ and XS OH-?

Answer 17

Green solution

Question 18

What colour is Cr3+ and XS NH3?

Answer 18

Violet solution