Glucose gives a silver mirror with Tollen's r | vedclass

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Question

(D) The Tollen's reagent test is a characteristic test for the presence of an aldehyde group. Glucose $(C_6H_{12}O_6)$ contains an aldehydic group $(-

Vedclass · Accepted Answer

An aldehydic group

Vedclass · Answer

(D) The Tollen's reagent test is a characteristic test for the presence of an aldehyde group. Glucose $(C_6H_{12}O_6)$ contains an aldehydic group $(-CHO)$ at the $C_1$ position. When glucose reacts with Tollen's reagent,the aldehyde group is oxidized to a carboxylic acid group (gluconic acid),and the silver ions $(Ag^+)$ are reduced to metallic silver $(Ag)$,which forms a silver mirror on the inner walls of the test tube. Therefore,the formation of a silver mirror confirms the presence of an aldehydic group.

Glucose gives a silver mirror with Tollen's reagent. It shows the presence of:

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