Topic 14 - Qualitative Tests for Functional Groups (general)

Question 1

Qualitative Tests in general

Answer 1

Pop test for hydrogen gas

Limewater test for carbon dioxide

Question 2

What are some qualitative tests for hydroxyl (-OH) groups?

Answer 2

Esterification (ester + H2SO4 (l) + heat)

Oxidation reaction (KMnO4 or K2Cr2O7 + heat (for full primary alcohol oxidation))

Question 2

What are some qualitative tests for carbon-to-carbon double bonds?

Answer 2

Bromine water (Br2)

Degree of Unsaturation (I2)

Baeyers Test (KMnO4 and H2O)

Question 3

What are some qualitative tests for carboxyl (-COOH) groups?

Answer 3

Esterification (-COOH)

Test with bases (Na2CO3)

pH test/litmus paper