1
JEE Main 2020 (Online) 2nd September Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following processes can explain this?
A
Osmosis
B
Reverse osmosis
C
Diffusion
D
Dialysis
2
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A graph of vapour pressure and temperature for three different liquids X, Y, and Z is shown below : JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Solutions Question 96 English The following inferences are made :
(A) X has higher intermolecular interactions compared to Y.
(B) X has lower intermolecular interactions compared to Y.
(C) Z has lower intermolecular interactions compared to Y.
The correct inference (s) is / are :
A
(B)
B
(A)
C
(C)
D
(A) and (C)
3
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non voltatile solute are together selated in a container. Over time :
A
The volume of the solution increases and the volume of the solvent decreases.
B
The volume of solution does not change and the volume of the solvent decreases.
C
The volumer of the solution and the solvent does not change.
D
The volume of the solution decreases and the volume of the solvent increases.
4
JEE Main 2020 (Online) 7th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
At 35oC, the vapour pressure of CS2 is 512 mm. Hg and that of acetone is 344 mm Hg. A solution of CS2 in acetone has a total vapour pressure of 600 mm Hg. The false statement amongst the following is :
A
CS2 and acetone are less attracted to each other than to themselves.
B
a mixture of 100 ml. CS2 and 100 ml. acetone has a volume < 200 ml.
C
Heat must be absorved in order to produce the solution 35oC
D
Raoult's law is not obeyed by this system.
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