1
JEE Main 2025 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct increasing order of stability of the complexes based on $\Delta_0$ value is :

  1. I. $[\text{Mn}(\text{CN})_6]^{3-}$

  2. II. $[\text{Co}(\text{CN})_6]^{4-}$

  3. III. $[\text{Fe}(\text{CN})_6]^{4-}$

  4. IV. $[\text{Fe}(\text{CN})_6]^{3-}$
A

I < II < IV < III

B

IV < III < II < I

C

III < II < IV < I

D

II < III < I < IV

3
JEE Main 2025 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

500 J of energy is transferred as heat to 0.5 mol of Argon gas at 298 K and 1.00 atm. The final temperature and the change in internal energy respectively are: Given: R = 8.3 J K-1 mol-1

A

368 K and 500 J

B

348 K and 300 J

C

378 K and 300 J

D

378 K and 500 J

4
JEE Main 2025 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The molar conductivity of a weak electrolyte when plotted against the square root of its concentration, which of the following is expected to be observed?

A

Molar conductivity increases sharply with increase in concentration.

B

Molar conductivity decreases sharply with increase in concentration.

C

A small increase in molar conductivity is observed at infinite dilution.

D

A small decrease in molar conductivity is observed at infinite dilution.

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