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(B) Tollen's reagent is an ammoniacal silver nitrate solution. Its active oxidizing species is $Ag^+$. It oxidizes both aliphatic and aromatic ald

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Acetaldehyde

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(B) Tollen's reagent is an ammoniacal silver nitrate solution. Its active oxidizing species is $Ag^+$. It oxidizes both aliphatic and aromatic aldehydes to their corresponding carboxylic acids,while $Ag^+$ is reduced to metallic silver $(Ag)$,forming a silver mirror.The reaction is: $R-CHO + 2[Ag(NH_3)_2]^+ + 3OH^- \rightarrow RCOO^- + 2Ag(s) + 4NH_3 + 2H_2O$.Among the given options,$Acetaldehyde$ $(CH_3CHO)$ is an aldehyde and therefore gives a positive Tollen's test.

Which of the following compounds will give a positive test with Tollen's reagent?

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