1
JEE Main 2025 (Online) 2nd April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following graph correctly represents the plots of $\mathrm{K}_{\mathrm{H}}$ at 1 bar for gases in water versus temperature?

A
JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Solutions Question 10 English Option 1
B
JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Solutions Question 10 English Option 2
C
JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Solutions Question 10 English Option 3
D
JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Solutions Question 10 English Option 4
2
JEE Main 2025 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements :

Statement (I): NaCl is added to the ice at 0°C, present in the ice cream box to prevent the melting of ice cream.

Statement (II): On addition of NaCl to ice at 0°C, there is a depression in freezing point.

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

A

Both Statement I and Statement II are false

B

Statement I is true but Statement II is false

C

Both Statement I and Statement II are true

D

Statement I is false but Statement II is true

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

1.24 g of AX2 (molar mass 124 g mol−1) is dissolved in 1 kg of water to form a solution with boiling point of 100.015°C, while 25.4 g of AY2 (molar mass 250 g mol−1) in 2 kg of water constitutes a solution with a boiling point of 100.0260°C.

Kb(H2O) = 0.52 kg mol−1

Which of the following is correct?

A

AX2 and AY2 (both) are completely unionised.

B

AX2 and AY2 (both) are fully ionised.

C

AX2 is completely unionised while AY2 is fully ionised.

D

AX2 is fully ionised while AY2 is completely unionised.

4
JEE Main 2025 (Online) 28th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Assume a living cell with 0.9% (w/w) of glucose solution (aqueous). This cell is immersed in another solution having equal mole fraction of glucose and water.
(Consider the data upto first decimal place only)

The cell will :

A
shrink since solution is $0.45 \%(\omega / \omega)$ as a result of association of glucose molecules (due to hydrogen bonding)
B
shrink since solution is $0.5 \%(\omega / \omega)$
C
show no change in volume since solution is $0.9 \%(\omega / \omega)$
D
swell up since solution is $1 \%(\omega / \omega)$
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