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When an aldose reacts with Barfoed's reagent, what type of organic compound forms? What type of chemical is this?

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BlueSky06
Barfoed's test is a concoction test utilized for identifying the nearness of monosaccharides. It depends on the diminishment of copper(II) acetic acid derivation to copper(I) oxide (Cu2O), which frames a block red hasten. 
Barfoed's reagent comprises of a 0.33 molar arrangement of unbiased copper acetic acid derivation in 1% acidic corrosive arrangement. The reagent does not keep well and it is, thusly, fitting to make it up when it is really required. May store uncertainly as per a few MSDS's.

Answer:

aldonic acid, Barfoed's reagent is copper(II) acetate in acetic acid.

Explanation:

Barfoed's test is the chemical test which is used for the detection of the presence of the monosaccharides.

The aldehyde group of aldose sugar is oxidized to the carboxylic group known as, aldonic acid.

RCHO + 2Cu²⁺ + 2H₂O → RCOOH + Cu₂O↓ + 4H⁺

Barfoed's reagent is copper(II) acetate in acetic acid which on reduces to copper(I) oxide forming a brick-red precipitate.

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