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reaction of aldehydes and ketones with 2,4-dinitrophenylhydrazine
yellow/ orange precipitate
reaction of aldehydes with potassium dichromate(VI) solution
orange to green
reaction of aldehydes when heated with Fehlings
blue solution to red precipitate
reaction of aldehydes when heated with Tollens
silver mirror on test tube
reaction of carboxylic acids with sodium carbonate
solid disappears
fizzing
reaction of carboxylic acids with sodium hydroxide solution
mixture warms up
reaction of carboxylic acids with aqueous ammonia
smell disappears
reaction of carboxylic acids with alcohols
sweet smell detected
reaction of acyl chloride and water
steamy/ misty fumes
mixture warms up
reactions of acyl chloride and alcohol
steamy/ misty fumes
mixture warms up
less vigorous than with water
preparation of 3-nitrobenzoate
cream solid
reaction carboxylic acid with phosphorous pentachloride
solid disappears, steamy/misty fumes, mixture warms up
