Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryAldehydes, Ketones and Carboxylic Acids2 Marks
Question
What is Tollen’s reagent?
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Answer
Tollen’s reagent is an ammoniacal silver nitrate $, [Ag(NH_3)_2]^+ OH^–.$
It is prepared by adding $NH_4OH$ solution to silver nitrate solution.
It is a stronger oxidising agent than Fehling solution. Aldehyde when heated with Tollen’s reagent, silver mirror is deposited.
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