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how will you distinguish between alcohol and aldehyde?

An alcohol contains OH group and an aldehyde contains HC=O group.

 

Alcohols under go esterification reaction but aldehydes do not.

 

Aldehydes reduces tollen’s reagent but alcohols do not.

 

Aldehydes react with 2,4-Dinitrophenylhydrazine to form yellow, orange or reddish orange precipitate (hydrazone formed) while alcohols do not react.

 

Alcohols react with ceric nitrate converts ceric ion to electronic structure producing colour change from yellow to red where aldehydes do not react

 

Aldehydes exclusively react with Schiff’s reagent giving magenta coloured conjugated product where alcohols do not react.

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alcohol undergoes esterification and aldehyde gives +ve fehling's test

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aldehyde give tollen and fehling test while alcohol does not

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