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18 Cards in this Set
- Front
- Back
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alkene Functional group |
Br2 (aq), room temp in dark (EA) Reddish brown Br2(aq) decolourises
KMnO4 dilute H2SO4 heat under reflux (oxidative cleavage) Decolourises purple sol, CO2 gas if terminal alkene |
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Phenol Functional group |
Br2(aq), room temp in dark (ES) Reddish brown Br2(aq) White ppt 2,4,6-tribromophenol formed Steam fumes of HBr liberated
Neutral FeCl3 Violet complex formed
Na metal (redox) Effervescence H2, pop with lighted splint |
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Phenylamine Functional group |
Br2(aq), room temp in dark (ES) Decolourises reddish brown Br2(aq) White ppt 2,4,6-tribomophenylamine |
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KMnO4, dilute H2SO4, heat under reflux. (oxidation) Decolourises purple sol |
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Pri/sec alcohol |
KMnO4/ K2Cr2O7 w dilute H2SO4, Heat under reflux (oxidation) Decolourises purple KMnO4 K2Cr2O7 sol from orange => green (Test for tertiary alc from pri/sec alc) |
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Aliphatic and aromatic aldehyde |
KMnO4/ K2Cr2O7 w dilute H2SO4,Heat under reflux (oxidation)Decolourises purple KMnO4K2Cr2O7 sol from orange => green
[Ag(NH3)2]+ /tollens' reagent, heat (Mild oxidation) Silver mirror of Ag formed |
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Ester |
KMnO4/ K2Cr2O7 w dilute H2SO4,Heat under reflux (oxidation) Decolourises purple KMnO4K2Cr2O7 sol from orange => green (Acid hydrolyses ester into alcohol for testing) |
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Halogenoalkane |
Nu sub 1. Heat with NaOH(aq) 2. Cool mixture, acidify with excess HNO3 (aq) 3. AgNO3 (aq) Yellow ppt AgI forms immediately, followed by cream ppt AgBr, Then white ppt AgCl |
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Acyl chloride |
Nu Sub Water, followed by AgNO3 (aq) Immediate white ppt AgCl |
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Aliphatic alcohol |
Nu sub PCl5 (s) room temp or SOCl2 (l), heat White fumes of HCl |
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I2 (aq), NaOH(aq), warm (mild oxidation) Yellow ppt of CHI3 (iodoform test) |
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Ketone / aldehyde |
2,4-dinitrophenylhydrazine 2,4-DNPH Brady's reagent (condensation rxn) Orange ppt |
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Aliphatic aldehyde |
Cu2+ w OH- /Fehling's reagent, warm (Mild oxidation) Blue Cu2+ sol decolourises Red brick ppt of Cu2O formed |
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Alcohol |
Na metal (redox) Effervescence H2, pop sound with lighted splint |
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Carboxylic acid |
Nu sub PCl5 (s) room temp or SOCl2 (l), heat White fumes of HCl
Na metal (redox) Effervescence H2, pop sound with lighted splint Na2CO3 or NaHCO3 (acid-carbonate rxn) Effervescence CO2, white ppt with Ca(OH)2 (aq) |
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Pri amides RCONH2 |
NaOH (aq), heat (alkaline hydrolysis) Pungent gas NH3, will form fumes with conc HCl/ moist red litmus paper => blue |
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Nitriles RCN |
NaOH (aq), heat (alkaline hydrolysis) Pungent gas NH3, will form fumes with conc HCl/ moist red litmus paper => blue |
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Ammonium salt (NH4+) |
NaOH (aq), warm (acid-base rxn) Pungent gas NH3, will form fumes with conc HCl/ moist red litmus paper => blue |
