What is formed during the oxidation of aldehydes? How can you distinguish aldehydes

| May 14, 2021 | education

What is formed during the oxidation of aldehydes? How can you distinguish aldehydes from other organic substances? Write the equation for the appropriate reaction.

When aldehydes are oxidized, acids are obtained with the same number of carbon atoms as in the molecule of the original aldehyde, that is, carboxylic acids.

If a formic aldehyde solution is added to an ammonia solution of silver oxide, formic acid is formed.

This reaction is qualitative for aldehydes and is called the “silver mirror” reaction.

H-C-OH + Ag2O → H-COOH + 2Ag ↓.

The second qualitative reaction to aldehydes is the reaction with copper (II) hydroxide.

As a result of the reaction, a brick-red precipitate is formed – Cu2O-copper (I) oxide.

Н3С-СОН + 2Cu (OH) 2 → Н3С-СООН + Cu2O + H2O.



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