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Specific test

Specific test. Salicylic acid test Ald. + few salicylic acid + 4 drops Conc. H 2 SO 4 (on the wall). Crimson red color. Not done. 2. Iodoform test Ald. + H 2 O + 10% NaOH + xss I 2. 1. No reaction. Yellow ppt. 3. Na– nitroprusside test Ald. + Na– nitroprusside + xss 10% NaOH.

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Specific test

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  1. Specific test

  2. Salicylic acid test • Ald. + few salicylic acid + 4 drops Conc. H2SO4 (on the wall) Crimson red color Not done 2. Iodoform test Ald. + H2O + 10% NaOH + xss I2 1. No reaction Yellow ppt 3. Na– nitroprusside test Ald. + Na– nitroprusside + xss 10% NaOH No reaction Red color 2.

  3. 1. Auto oxidation test White crystals of benzoic acid −− 2. Iodoform test 1. No reaction Yellow ppt 3. Na– nitroprusside test 2. No reaction Red color 4. Odour Bitter almond odor −− 3. Meta– dinitrobenzene test Acetophenone + Ethaol + few gm m-dinitrobenzene + xss 10% NaOH Violet color in the alcoholic layer −−

  4. 1. Iodoform test Yellow ppt 2. Na– nitroprusside test Specific test of Chlorahydrate: Red color 3. Meta– dinitrobenzene test Acetone + few gm m-dinitrobenzene + xss 10% NaOH shaking Deep violet color & slowly fade 1. Soda lime Sweety odor of chloroform odour 2. 30% NaOH Sweety odor of chloroform odour + droplets of oil Separation of an oily layer of Chloral 3. Conc H2SO4

  5. 1725 cm -1 C=O streatching band of aldehyde 1715 cm -1 C=O streatching band of ketone < 3000 cm -1 CH aliphatic streatching band > 3000 cm -1 CH aromatic streatching band

  6. aldehyde keton

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