(C) An aldose is a monosaccharide containing an aldehyde group $(-CHO)$ at the end of the carbon chain.Glucose,Ribose,and Mannose are all aldoses as t

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(C) An aldose is a monosaccharide containing an aldehyde group $(-CHO)$ at the end of the carbon chain.Glucose,Ribose,and Mannose are all aldoses as they contain an aldehyde group.Fructose is a ketohexose,meaning it contains a ketone group $(>C=O)$ at the $C-2$ position.Therefore,Fructose is not an aldose.

Class 12 Chemistry Biomolecules Carbohydrates

Easy

Which of the following is not an aldose?

A
Glucose
B
Ribose
C
Fructose
D
Mannose

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Class 12

Chemistry Questions

Chapter

Biomolecules

Subtopic

Carbohydrates

Match List-$I$ with List-$II$:

List-$I$ List-$II$

$A$. Glucose $+ HI$ $I$. Gluconic acid

$B$. Glucose $+ Br_{2}$ water $II$. Glucose pentacetate

$C$. Glucose $+$ acetic anhydride $III$. Saccharic acid

$D$. Glucose $+ HNO_{3}$ $IV$. Hexane

Choose the correct answer from the options given below.

List-$I$	List-$II$
$A$. Glucose $+ HI$	$I$. Gluconic acid
$B$. Glucose $+ Br_{2}$ water	$II$. Glucose pentacetate
$C$. Glucose $+$ acetic anhydride	$III$. Saccharic acid
$D$. Glucose $+ HNO_{3}$	$IV$. Hexane