Chemical tests 0.0 / 5 ? ChemistrytestsA2/A-levelAQA Created by: joel burton-loweCreated on: 28-10-13 17:44 Testing for Alkene (C=C) T1 Condition: Bromine water, Result: colourless 1 of 18 Testing for Alkene (C=C) T2 Condition: Cold alkaline Potassium manganate(V11), Result: purple to green(brown) 2 of 18 Testing for Chloroalkane Condition: acidified (HNO3) add aq. Silver nitrate, Result: White precipitate (dissolves in ammonia) 3 of 18 Testing for Bromoalkane Condition: acidified (HNO3) add aq. Silver nitrate, Result: cream precipitate (dissolves in conc ammonia) 4 of 18 Testing for Iodoalkane Condition: acidified (HNO3) add aq. Silver nitrate, Result: yellow precipitate (doesnt dissolves in ammonia) 5 of 18 Testing for Alcohol (1* OH) Condition: aq. potassium dichromate + dilute sulphuric acid Result: Orange to Green 6 of 18 Testing for Alcohol (2* OH) Condition: aq. potassium dichromate + dilute sulphuric acid, Result: Purple to colourless 7 of 18 Testing for Alcohol (1*,2*,3* OH) Condition: dry test tube add phosphorus(V) Chloride (PCl5), Result: steamy acidic white fumes of hydrogen chloride 8 of 18 Testing for Carboxylic Acid (COOH) T1 Condition: dry test tube add phosphorus Chloride, Result: steamy acidic white fumes of hydrogen chloride 9 of 18 Testing for Carboxylic Acid (COOH) T2 Condition: sodium carbonate, Result: effervescence and limewater test 10 of 18 Testing for Aldehyde (CHO) T1 condition: 2,4 dinitrophenylhydrazine, Result: yellow-orange crystalline precipitate 11 of 18 Testing for Ketone (RC(=O)R) condition: 2,4 dinitrophenylhydrazine, Result: yellow-orange crystalline precipitate 12 of 18 Testing for Aldehyde (CHO) T2 Condition: Fehling's solution, Result: brick red precipitate 13 of 18 Testing for Aldehyde (CHO) T3 Condition: Tollens reagent (ammoniacal silver nitrate) , Result: Silver mirror 14 of 18 Testing for Methyl Ketone (COCH3) Condition: Iodine in the presence of alkali e.g potassium iodine, Result: pale yellow precipitate 15 of 18 Testing for Methyl Secondary alcohol (CHOHCH3) Condition: Iodine in the presence of alkali e.g potassium iodine, Result: pale yellow precipitate 16 of 18 Testing for Alcohol (3* OH) T1 Condition: aq. potassium dichromate(V1) acidified with dilute sulphuric acid, Result: remains orange 17 of 18 Testing for Alcohol (3* OH) T2 Condition: aq. potassium dichromate(V11) acidified with dilute sulphuric acid Result: Remains purple 18 of 18
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