Unit4 Edexcel reactions for carbonyls

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Reactions which are learnt in Unit 4

Tollens + Aldehyde forms a silver mirror on the edge of the test tube

CH3CHO + H2O àCH3COOH +2H++2e-

 Ag(NH3)2+(aq)  + e-  à Ag(s) + 2NH3(aq)


Aldehyde and H2SO4 and K2Cr2O7 goes to a carboxylic acid when heated under reflux

Aldehyde+ Fehlings solution produces a red/brown precipitate of Cu+1 ions which have been reduced( a


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