JEE Main 2025 (Online) 29th January Morning Shift | Biomolecules Question 2 | Chemistry

1

JEE Main 2025 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

Match List - I with List - II.

List - I (Carbohydrate)	List - II (Linkage Source)
(A) Amylose	(I) $\beta$ - $C_1 - C_4$, plant
(B) Cellulose	(II) $\alpha$ - $C_1 - C_4$, animal
(C) Glycogen	(III) $\alpha$ - $C_1 - C_4$, $\alpha$ - $C_1 - C_6$, plant
(D) Amylopectin	(IV) $\alpha$ - $C_1 - C_4$, plant

Choose the correct answer from the options given below :

A

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)

B

(A)-(III), (B)-(III), (C)-(I), (D)-(IV)

C

(A)-(IV), (B)-(I), (C)-(III), (D)-(II)

D

(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

2

JEE Main 2025 (Online) 28th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List-I with List-II.

List - I (Saccharides)	List - II (Glycosidic-linkages found)
(A) Sucrose	(I) α 1 $-$ 4
(B) Maltose	(II) α 1 $-$ 4 and α 1 $-$ 6
(C) Lactose	(III) α 1 $-$ β 2
(D) Amylopectin	(IV) β 1 $-$ 4

Choose the correct answer from the options given below :

A

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

B

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

C

(A)-(II), (B)-(IV), (C)-(III), (D)-(I)

D

(A)-(IV), (B)-(II), (C)-(I), (D)-(III)

3

JEE Main 2025 (Online) 28th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Identify correct conversion during acidic hydrolysis from the following :

(A) starch gives galactose.

(B) cane sugar gives equal amount of glucose and fructose.

(C) milk sugar gives glucose and galactose.

(D) amylopectin gives glucose and fructose.

(E) amylose gives only glucose.

Choose the correct answer from the options given below :

A

(A), (B) and (C) only

B

(B), (C) and (D) only

C

(B), (C) and (E) only

D

(C), (D) and (E) only

4

JEE Main 2025 (Online) 28th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

Given below are two statements:

Statement I : D-glucose pentaacetate reacts with 2,4 -dinitrophenylhydrazine

Statement II : Starch, on heating with concentrated sulfuric acid at $100^{\circ} \mathrm{C}$ and $2-3 \mathrm{atmosphere}$ pressure produces glucose.

In the light of the above statements, choose the correct answer from the options given below

A

Statement I is true but Statement II is false

B

Both Statement I and Statement II are true

C

Statement I is false but Statement II is true

D

Both Statement I and Statement II are false