Consider the following reagents:I. Br_2 water | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Aldoses contain an aldehyde group $(-CHO)$,while ketoses contain a ketone group $(>C=O)$.$Br_2$ water is a mild oxidizing agent that oxidizes the

Vedclass · Accepted Answer

$I$ only

Vedclass · Answer

(C) Aldoses contain an aldehyde group $(-CHO)$,while ketoses contain a ketone group $(>C=O)$.$Br_2$ water is a mild oxidizing agent that oxidizes the aldehyde group of an aldose to a carboxylic acid (gluconic acid) but does not oxidize ketoses.Therefore,$Br_2$ water can distinguish between aldoses and ketoses.Tollen's reagent and Fehling's solution are oxidizing agents that react with both aldoses and ketoses (due to the tautomerization of ketoses into aldoses in alkaline medium),so they cannot distinguish between them.Thus,only $I$ is the correct reagent.

Consider the following reagents:
$I$. $Br_2$ water
$II$. Tollen's reagent
$III$. Fehling's solution
Which of these can be used to distinguish between an aldose and a ketose?

Similar Questions

Which of the following statements is false?

What is the general chemical formula of a disaccharide?

What is formed when a large number of monosaccharide units are linked together by glycosidic bonds?

Which of the following is a reducing sugar?

Identify the biological importance of carbohydrates from the following statements:
$1$. In the structure of cell wall.
$2$. As a food storage substance.
$3$. In protein synthesis.
$4$. As enzymes.
$5$. In the structure of $DNA$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Consider the following reagents:$I$. $Br_2$ water$II$. Tollen's reagent$III$. Fehling's solutionWhich of these can be used to distinguish between an aldose and a ketose?