Question 1: Palette 1/14

JEE Advanced 2026 MCQ

A known artificial sweetener $\mathbf{X}$ is composed of 4-chloro-4-deoxy- $\alpha$-D-galactose and 1,6-dichloro-1,6-dideoxy- $\beta$-D-fructose joined by a glycosidic linkage. Structure of D-galactose is given below :

The correct structure of $\mathbf{X}$ is

A

B

C

D

Question 2: Palette 2/14

JEE Advanced 2026 MSQ

The correct statement(s) regarding sugars is(are) :

A

On treatment with HNO₃, gluconic acid is oxidized to saccharic acid, whereas glucose is not oxidized to saccharic acid.

B

Fructose gives a positive Fehling’s test because it isomerises to glucose and another aldohexose in the presence of Fehling’s reagent.

C

Invert sugar is an equimolar mixture of D-glucose and D-fructose formed after hydrolysis of the corresponding disaccharide.

D

Specific rotation of invert sugar is −40°.

Question 3: Palette 3/14

JEE Advanced 2023 MCQ

A disaccharide $\mathbf{X}$ cannot be oxidised by bromine water. The acid hydrolysis of $\mathbf{X}$ leads to a laevorotatory solution. The disaccharide $\mathbf{X}$ is :

A

B

C

D

Question 4: Palette 4/14

JEE Advanced 2022 MCQ

Treatment of D-glucose with aqueous $\mathrm{NaOH}$ results in a mixture of monosaccharides, which are

A

B

C

D

Question 5: Palette 5/14

JEE Advanced 2021 MSQ

Given :


The compound(s), which on reaction with HNO₃ will give the product having degree of rotation, [$\alpha$]_D = $-$52.7$^\circ$ is (are)

A

B

C

D

Question 6: Palette 6/14

JEE Advanced 2019 MSQ

Which of the following statement(s) is(are) true?

A

The two six-membered cyclic hemiacetal forms of D-(+)- glucose are called anomers.

B

Oxidation of glucose with bromine water gives glutamic acid

C

Monosaccharides cannot be hydrolysed to given polyhydroxy aldehydes and ketones

D

Hydrolysis of sucrose gives dextrorotatory glucose and laevorotatory fructose

Question 7: Palette 7/14

JEE Advanced 2018 MCQ

The Fischer presentation of $D$-glucose is given below.


The correct structure(s) of $\beta $-$L$-glucopyranose is (are) :

A

B

C

D

Question 8: Palette 8/14

JEE Advanced 2016 MSQ

For "invert sugar", the correct statement(s) is(are)

(Given : specific rotations of (+)-sucrose, (+)-maltose, L-($-$)-glucose and L-(+)-fructose in aqueous solution are +66$^\circ$, +140$^\circ$, $-$52$^\circ$ and +92$^\circ$, respectively.)

A

"invert sugar" is prepared by acid catalyzed hydrolysis of maltose.

B

"invert sugar" is an equimolar mixture of D-(+)-glucose and D-($-$)-fructose.

C

specific rotation of "invert sugar" is $-$20$^\circ$.

D

on reaction with Br₂ water, "invert sugar" forms saccharic acid as one of the products.

Question 9: Palette 9/14

JEE Advanced 2015 MCQ

The structure of D-(+)-glucose is

The structure of L-($-$)-glucose is

A

B

C

D

Question 10: Palette 10/14

JEE Advanced 2011 MCQ

The following carbohydrate is

A

a ketohexose

B

an aldohexose

C

an $\alpha$-furanose

D

an $\alpha$-pyransose

Question 11: Palette 11/14

JEE Advanced 2010 MCQ

The correct statement about the following disaccharide is :

A

Ring (a) is pyranonse with $\alpha$-glycosidic link.

B

Ring (a) is furanonse with $\alpha$-glycosidic link.

C

Ring (b) is furanonse with $\alpha$-glycosidic link.

D

Ring (b) is pyranonse with $\alpha$-glycosidic link.

Question 12: Palette 12/14

JEE Advanced 2009 MSQ

The correct statement(s) about the following sugar X and Y is(are)

A

X is a reducing sugar and Y is a non-reducing sugar.

B

X is a non-reducing sugar and Y is a reducing sugar.

C

The glucosidic linkages in X and Y are $\alpha$ and $\beta$, respectively.

D

The glucosidic linkages in X and Y are $\beta$ and $\alpha$, respectively.

Question 13: Palette 13/14

JEE Advanced 2008 MCQ

Cellulose upon acetylation with excess acetic anhydride/H$_2$SO$_4$ (catalytic) gives cellulose triacetate whose structure is :

A

B

C

D

Question 14: Palette 14/14

JEE Advanced 2007 MCQ

Statement-1 : Glucose gives a reddish-brown precipitate with Fehling's solution.

Statement-2 : Reaction of glucose with Fehling's solution gives $\mathrm{CuO}$ and gluconic acid.

A

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True