Unknown # 1 Type of Compound Alcohol Aldehyde Ketone.

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Presentation transcript:

Unknown # 1 Type of Compound Alcohol Aldehyde Ketone

Set C Set A Set B Your unknown will be from one of these sets. trans-cinamaldehyde acetophenone 1-octanol cyclohexanone 4-methyl-2-pentanol 2-methyl-1-propanal 2-propanone 1-pentanol 2-methyl-1-propanol 2-propanol 2-butanone benzaldehyde 2-butanol 2-pentanone 1-pentanol Your unknown will be from one of these sets.

Procedure Classification Tests Solid Derivative

Classification Tests Chromic acid test Iodoform test 2,4-Dinitrophenylhydrazine test

Chromic Acid Test CrO3/H2SO4 in acetone Cr3+ H2CrO4 green red

Chromic Acid Test RCH2OH RCOOH R2CHOH R2CO RCOOH RCHO

Iodoform Test Reagent: NaOH and I2 (NaOI)

Iodoform Test

2,4-dinitrophenylhydrazine test Aldehyde or ketone

2,4-dinitrophenylhydrazone +

Derivatives Aldehydes and Ketones 1. 2,4-dinitrophenylhydrazone 2. Semicarbazone

Alcohol Derivative 3,5-dinitrobenzoyl chloride 3,5-dinitrobenzoate

E B D A C CrO3 + - B,C A, D, E + - DNP + - B C E A,D Iodoform + - D A