Colours Of Complexes

Question 1

Colour of: – [Co(H2O)4(OH)2]

Answer 1

Green / blue precipitate

Question 2

Colour of – [Co(NH3)6] 2+

Answer 2

Straw coloured solution

Question 3

Colour of – CoCO3

Answer 3

Pink precipitate

Question 4

Colour of [CoCl4] 2-

Answer 4

Blue solution

Question 5

Colour of – [Cu(H2O)6] 2+

Answer 5

Blue solution

Question 6

Colour of – [Cu(H2O)4(OH)2]

Answer 6

Blue precipitate

Question 7

Colour of – [Cu(NH3)4(H2O)2] 2+

Answer 7

Deep blue solution

Question 8

Colour of – CuCO3

Answer 8

Green / blue precipitate

Question 9

Colour of – [CuCl4] 2-

Answer 9

Yellow / green solution

Question 10

Colour of – [Fe(H2O)6] 2+

Answer 10

Green solution

Question 11

Colour of – [Fe(H2O)4(OH)2]

Answer 11

Green precipitate

Question 12

Colour of – FeCO3

Answer 12

Green precipitate

Question 13

Colour of [Al(H2O)6] 3+

Answer 13

Colourless solution

Question 14

Colour of – [Al(H2O)3(OH)3]

Answer 14

White precipitate

Question 15

Colour of – [Al(H2O)2(OH)4] -

Answer 15

Colourless solution

Question 16

Colour of – [Al(H2O)3(OH)3]

Answer 16

White precipitate

Question 17

Colour of – [Cr(H2O)6] 3+

Answer 17

Violet solution

Question 18

Colour of – [Cr(H2O)3(OH)3]

Answer 18

Green precipitate

Question 19

Colour of – [Cr(OH)6] 3-

Answer 19

Green solution

Question 20

Colour of – [Cr(NH3)6] 3+

Answer 20

Purple solution

Question 21

Colour of – [Fe(H2O)6] 3+

Answer 21

Yellow colour

Question 22

Colour of – [Fe(H2O)3(OH)3]

Answer 22

Brown precipitate

Question 23

Colour of: – [Co(H2O)6] 2+

Answer 23

Pink solution