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Give a chemical test to distinguish between ethanal and propanal

 Give a chemical test to distinguish between ethanal and propanal

Grade:12

3 Answers

grenade
2061 Points
8 years ago
When warmed with iodine and sodium hydroxide solution, ethanal gives yellow crystals of iodoform.
Propanal does not give this iodoform test
rohit kumar
13 Points
6 years ago

Aldehydes having at least one methyl group linked to the carbonyl carbon atom respond to iodoform test. They are oxidized by sodium hypoiodite (NaOI) to give iodoforms. Ethanal having  a methyl group responds to this test, but propanal does not.

Halima
15 Points
5 years ago
Ethanal show toulene's reagent test but propanal do not can also be the distinguish test for ethanal and propanal

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