1
JEE Advanced 2023 Paper 2 Online
Numerical
+4
-0
$50 \mathrm{~mL}$ of 0.2 molal urea solution (density $=1.012 \mathrm{~g} \mathrm{~mL}^{-1}$ at $300 \mathrm{~K}$ ) is mixed with $250 \mathrm{~mL}$ of a solution containing $0.06 \mathrm{~g}$ of urea. Both the solutions were prepared in the same solvent. The osmotic pressure (in Torr) of the resulting solution at $300 \mathrm{~K}$ is _______.
[Use: Molar mass of urea $=60 \mathrm{~g} \mathrm{~mol}^{-1}$; gas constant, $\mathrm{R}=62$ L Torr $\mathrm{K}^{-1} \mathrm{~mol}^{-1}$;
Assume, $\Delta_{\text {mix }} \mathrm{H}=0, \Delta_{\text {mix }} \mathrm{V}=0$ ]
[Use: Molar mass of urea $=60 \mathrm{~g} \mathrm{~mol}^{-1}$; gas constant, $\mathrm{R}=62$ L Torr $\mathrm{K}^{-1} \mathrm{~mol}^{-1}$;
Assume, $\Delta_{\text {mix }} \mathrm{H}=0, \Delta_{\text {mix }} \mathrm{V}=0$ ]
Your input ____
2
JEE Advanced 2022 Paper 2 Online
Numerical
+3
-1
An aqueous solution is prepared by dissolving $0.1 \mathrm{~mol}$ of an ionic salt in $1.8 \mathrm{~kg}$ of water at $35^{\circ} \mathrm{C}$. The salt remains $90 \%$ dissociated in the solution. The vapour pressure of the solution is $59.724 \mathrm{~mm}$ of Hg. Vapor pressure of water at $35{ }^{\circ} \mathrm{C}$ is $60.000 \mathrm{~mm}$ of $\mathrm{Hg}$. The number of ions present per formula unit of the ionic salt is _________.
Your input ____
3
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
The boiling point of water in a 0.1 molal silver nitrate solution (solution A) is x$$^\circ$$C. To this solution A, an equal volume of 0.1 molal aqueous barium chloride solution is added to make a new solution B. The difference in the boiling points of water in the two solutions A and B is y $$\times$$ 10$$-$$2$$^\circ$$C.
(Assume : Densities of the solutions A and B are the same as that of water and the soluble salts dissociate completely.
Use : Molal elevation constant (Ebullioscopic Constant), Kb = 0.5 K kg mol$$-$$1; Boiling point of pure water as 100$$^\circ$$C.)
(Assume : Densities of the solutions A and B are the same as that of water and the soluble salts dissociate completely.
Use : Molal elevation constant (Ebullioscopic Constant), Kb = 0.5 K kg mol$$-$$1; Boiling point of pure water as 100$$^\circ$$C.)
The value of x is ________.
Your input ____
4
JEE Advanced 2021 Paper 1 Online
Numerical
+2
-0
The boiling point of water in a 0.1 molal silver nitrate solution (solution A) is x$$^\circ$$C. To this solution A, an equal volume of 0.1 molal aqueous barium chloride solution is added to make a new solution B. The difference in the boiling points of water in the two solutions A and B is y $$\times$$ 10$$-$$2$$^\circ$$C.
(Assume : Densities of the solutions A and B are the same as that of water and the soluble salts dissociate completely.
Use : Molal elevation constant (Ebullioscopic Constant), Kb = 0.5 K kg mol$$-$$1; Boiling point of pure water as 100$$^\circ$$C.)
(Assume : Densities of the solutions A and B are the same as that of water and the soluble salts dissociate completely.
Use : Molal elevation constant (Ebullioscopic Constant), Kb = 0.5 K kg mol$$-$$1; Boiling point of pure water as 100$$^\circ$$C.)
The value of | y | is ________.
Your input ____
Questions Asked from Solutions (Numerical)
Number in Brackets after Paper Indicates No. of Questions
JEE Advanced 2023 Paper 2 Online (1)
JEE Advanced 2022 Paper 2 Online (1)
JEE Advanced 2021 Paper 1 Online (2)
JEE Advanced 2020 Paper 2 Offline (1)
JEE Advanced 2019 Paper 1 Offline (1)
JEE Advanced 2018 Paper 1 Offline (2)
JEE Advanced 2016 Paper 1 Offline (1)
JEE Advanced 2014 Paper 1 Offline (2)
IIT-JEE 2006 (1)
JEE Advanced Subjects
Physics
Mechanics
Units & Measurements
Motion
Laws of Motion
Work Power & Energy
Impulse & Momentum
Rotational Motion
Properties of Matter
Heat and Thermodynamics
Simple Harmonic Motion
Waves
Gravitation
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry
Structure of Atom
Redox Reactions
Gaseous State
Equilibrium
Solutions
States of Matter
Thermodynamics
Chemical Kinetics and Nuclear Chemistry
Electrochemistry
Solid State & Surface Chemistry
Inorganic Chemistry
Periodic Table & Periodicity
Chemical Bonding & Molecular Structure
Isolation of Elements
Hydrogen
s-Block Elements
p-Block Elements
d and f Block Elements
Coordination Compounds
Salt Analysis
Organic Chemistry
Mathematics
Algebra
Quadratic Equation and Inequalities
Sequences and Series
Mathematical Induction and Binomial Theorem
Matrices and Determinants
Permutations and Combinations
Probability
Vector Algebra and 3D Geometry
Statistics
Complex Numbers
Trigonometry
Coordinate Geometry
Calculus