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Aldehydes, Ketones And Carboxylic Acids

Question
CBSEENCH12008757

Describe the following:
Tollen’s reagent

Solution
Tollen’s reagent: Tollen’s reagent is a solution of freshly prepared ammoniacal silver nitrate and when an aldehyde is added to Tollen’s reagent a silver mirror is formed on the inner side of the tube.The reaction occur in alkaline medium.
RCHO space plus 2 left square bracket Ag left parenthesis NH subscript 3 right parenthesis subscript 2 right square bracket to the power of plus space plus 3 OH to the power of minus rightwards arrow RCOO to the power of minus space space plus 2 Ag space plus 2 straight H subscript 2 straight O space plus 4 NH subscript 3