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Question
Reducing sugar can reduce:
Reducing sugar can reduce:
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Solution
The correct option is C Fehling solution to cuprous oxide
A reducing sugar is any sugar that either has an aldehyde group or is capable of forming one in the solution, through isomerism.
The aldehyde functional group allows the sugar to act as a reducing agent, or example, in the Tollens' test or Benedict's reagent.
Fehling's solution is used to test for the presence of a reducing sugar. The reducing sugar reduces copper(II) ions in these test solutions to copper(I), which then forms a brick red copper(I) oxide precipitate.
An example is given in the attached image.
Option D is correct.
A reducing sugar is any sugar that either has an aldehyde group or is capable of forming one in the solution, through isomerism.
The aldehyde functional group allows the sugar to act as a reducing agent, or example, in the Tollens' test or Benedict's reagent.
Fehling's solution is used to test for the presence of a reducing sugar. The reducing sugar reduces copper(II) ions in these test solutions to copper(I), which then forms a brick red copper(I) oxide precipitate.
An example is given in the attached image.
Option D is correct.
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