Colour of substances

Question 1

Silver oxide (Ag2O)

Answer 1

Brown

Question 2

Manganese(IV) oxide (MnO2)

Answer 2

Brown(Black)

Question 3

F3(SCN)2+

Answer 3

Deep red

Question 4

Silver iodide solid (AgI)

Answer 4

Yellow

Question 5

Hydrated iron(III) oxide (Fe2O3•xH2O)

Answer 5

Brown

=Rust

Question 6

Copper

Answer 6

Brown

Question 8

Iron(III) Hydroxide (Fe(OH)3)

Answer 8

Brown

Question 8

Iron(III) oxide (Fe2O3)

Answer 8

Brown

Question 9

Conc. Br2

Answer 9

Brown

Question 10

Br2 in organic solvent

Answer 10

Brown

Question 11

Br2 vapour

Answer 11

Brown

Question 13

Cobalt(II) chloride (CoCl2)

Answer 13

Pink

Question 14

Potassium dichromate (K2Cr2O7)

Answer 14

Orange

Question 15

Dilute Br2 aq

Answer 15

Orange

Question 16

[Cu(NH3)4]2+

Answer 16

Deep blue

Question 17

Br2 in organic solvent

Answer 17

Orange

Question 18

Iron(III) chloride (FeCl3)

Answer 18

Yellow

Question 19

NO2 gas

Answer 19

Brown

Question 20

Manganese(II) chloride (MnCl2)

Answer 20

Pink

Question 21

Silver bromide solid (AgBr)

Answer 21

Pale yellow

Question 22

Chromium (III) compounds (Cr3+)

Answer 22

Green

Question 23

Sodium Chromate (Na2CrO4)

Answer 23

Yellow

Question 23

Iron(II) compounds (Fe2+)

Answer 23

Green

Question 24

Anhydrous Cobalt(II) chloride

Answer 24

Blue

Question 25

Nickel(II) compounds (Ni2+)

Answer 25

Green

Question 26

I2 solid/vapour/in organic solvent

Answer 26

Purple

Question 27

Copper(II) compounds (Cu2+)

Answer 27

Blue

Question 28

Cl2 vapour/aq/in organic solvent

Answer 28

Yellowish green

Question 28

I2-starch complex

Answer 28

Deep blue

Question 29

Potassium permanganate (KMnO4)

Answer 29

Purple

Question 31

I2 in KI

Answer 31

Brown