Qualitative Tests for Organic Compounds

Question 1

For alkenes

Answer 1

Bromine
Baeyer’s

Question 2

For alkyl halides

Answer 2

Beilstein

Question 3

For alcohols

Answer 3

Lucas

Question 4

For phenols

Answer 4

Ferric chloride

Question 5

For aldehydes, alcohols, and other reducing compounds

Answer 5

Jones Oxidation
Fehling’s

Question 6

For aldehydes and ketones

Answer 6

Brady’s

Question 7

For methyl ketones only

Answer 7

Iodoform

Question 8

For amines

Answer 8

Hinsberg

Question 9

Reagent of Bromine

Answer 9

Bromine in CCl4

Question 10

Reagent of Baeyer’s

Answer 10

KMnO4

Question 11

Reagent of Beilstein

Answer 11

Copper wire with sample
Flame

Question 12

Reagent of Lucas

Answer 12

Zinc chloride in HCl

Question 13

Reagent of Ferric Chloride

Answer 13

FeCl3

Question 14

Reagent of Jones Oxidation

Answer 14

Chromic acid in sulfuric acid

Question 15

Reagent of Fehling’s

Answer 15

Fehling’s A: cupric sulfate
Fehling’s B: Na K tartrate

Question 16

Reagent of Brady’s

Answer 16

2,4-dinitrophenylhydrazine

Question 17

Reagent of Iodoform

Answer 17

Alkaline iodine solution

Question 18

Reagent of Hinsberg

Answer 18

Benzenesulfonyl chloride

Question 19

Result of Bromine

Answer 19

Disappearance of orange

Question 20

Result of Baeyer’s

Answer 20

Disappearance of violet
Formation of brown ppt

Question 21

Result of Beilstein

Answer 21

Green flame

Question 22

Result of Lucas

Answer 22

Tertiary: cloudiness faster
Secondary: cloudiness slower
Primary: no reaction

Question 23

Result of Ferric chloride

Answer 23

Blue or purple

Question 24

Result of Jones Oxidation

Answer 24

Green

Question 25

Result of Fehling’s

Answer 25

Brick red ppt

Question 26

Result of Brady’s

Answer 26

Red ppt

Question 27

Result of Iodoform

Answer 27

Pale yellow ppt

Question 28

Result of Hinsberg

Answer 28

Primary: soluble product
Secondary: insoluble product
Tertiary: no reaction