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Grade: 12
could use a help with filling this table out. thank you!
one year ago

Answers : (1)

Ravleen Kaur
askIITians Faculty
1451 Points
							Some functional group tests are listed below.
Please use the information below to fill the table.

Tests for unsaturation
1. Cold dilute potassium permanganate solution.
2. Solution of bromine in carbon tetrachloride.

Tests for compounds containing nitrogen
1. Amines
(a) Nitrous acid.
(b) Confirmatory tests.

2. Compounds which give amines or ammonia on acid or alkaline hydrolysis:
Amides, substituted amides, anilides, nitriles.

3. Compounds which give amines on reduction:
Nitro, nitroso, azo, hydrazo, nitriles.

Tests for compounds containing C, H and possibly oxygen
1. Carboxylic acids
Na2CO3 or NaHCO3 solution liberate carbon dioxide.

2. Phenols
(a) Sodium hydroxide solution (soluble). Insoluble in and no CO2 from NaHCO3 (except when electron attracting groups present, e.g. 2,4-dinitrophenol).
(b) Ferric chloride solution.
(c) Bromine water.

3. Aldehydes and Ketones
(a) 2,4-dinitrophenylhydrazine (as Brady's reagent) for C=O.
(b) Iodoform test for CH3CO-.

4. Aldehydes only (reducing properties)
(a) Fehling's solution.
(b) Tollen's reagent (ammoniacal AgNO3 solution).
(c) Jones reagent.

5. Alcohols
(a) Lucas' reagent to distinguish I, II and III alcohols.
(b) Jones reagent.
(c) Metallic sodium (use dry liquid and dry tube).

6. Sugars
(a) Molisch's test.

7. Esters
(a) Hydroxamic acid test.
(b) Hydrolysis.
one year ago
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