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Numerical

JEE Advanced 2023 Paper 2 Online
$50 \mathrm{~mL}$ of 0.2 molal urea solution (density $=1.012 \mathrm{~g} \mathrm{~mL}^{-1}$ at $300 \mathrm{~K}$ ) is mixed with $250 \mathrm{~mL}$ o...
JEE Advanced 2022 Paper 2 Online
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...
JEE Advanced 2021 Paper 1 Online
The value of x is ________.
JEE Advanced 2021 Paper 1 Online
The value of | y | is ________.
JEE Advanced 2020 Paper 2 Offline
Liquids A and B form ideal solution for all compositions of A and B at 25$$^\circ $$C. Two such solutions with 0.25 and 0.50 mole fractions of A have ...
JEE Advanced 2019 Paper 1 Offline
On dissolving 0.5 g of a non-volatile non-ionic solute to 39 g of benzene, its vapor pressure decreases from 650 mmHg to 640 mmHg. The depression of f...
JEE Advanced 2018 Paper 1 Offline
Liquids A and B form ideal solution over the entire range of composition. At temperature $$T,$$ equimolar binary solution of liquids $$A$$ and $$B$$ ...
JEE Advanced 2018 Paper 1 Offline
The plot given below shows $$P-T$$ curves (where $$P$$ is the pressure and $$T$$ is the temperature) for two solvents $$X$$ and $$Y$$ and isomolal sol...
JEE Advanced 2016 Paper 1 Offline
The mole fraction of a solute in a solution is 0.1. At 298 K, molarity of this solution is the same as its molality. Density of this solution at 298 K...
JEE Advanced 2014 Paper 1 Offline
MX2 dissociates in M2+ and X- ions in an aqueous solution, with a degree of dissociation ($$\alpha$$) of 0.5. The ratio of the observed depression of ...
IIT-JEE 2006
75.2 g of C6H5OH (phenol) is dissolved in a solvent of Kf = 14. If the depression in freezing point is 7 K then find the % of phenol that dimerises....

MCQ (Single Correct Answer)

JEE Advanced 2017 Paper 2 Offline
Pure water freezes at $$273$$ $$K$$ and $$1$$ bar. The addition of $$34.5$$ $$g$$ of ethanol to $$500$$ $$g$$ of water changes the freezing point of t...
JEE Advanced 2016 Paper 2 Offline
The qualitative sketches I, II and III given below show the variation of surface tension with molar concentration of three different aqueous solutions...
IIT-JEE 2012 Paper 2 Offline
For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g of water. the elevation in boiling point at 1 atm pressure is...
IIT-JEE 2011 Paper 2 Offline
The freezing point (in oC) of a solution containing 0.1 g of K3[Fe(CN)6] (Mol. wt. 329) in 100 g of water (Kf = 1.86 K kg mol-1) is...
IIT-JEE 2009 Paper 1 Offline
The Henry's law constant for the solubility of N$$_2$$ gas in water at 298 K is 1.0 $$\times$$ 10$$^5$$ atm. The mole fraction of N$$_2$$ in air is 0....
IIT-JEE 2008 Paper 1 Offline
The freezing point of the solution M is :
IIT-JEE 2008 Paper 1 Offline
The vapour pressure of the solution M is :
IIT-JEE 2008 Paper 1 Offline
Water is added to the solution M such that the fraction of water in the solution becomes 0.9 mole. The boiling point of this solution is:
IIT-JEE 2005 Screening
The elevation in boiling point of a solution of 13.44 g of CuCl2 in 1kg of water using the following information will be (Molecular weight of CuCl2 = ...
IIT-JEE 1990
The freezing point of equimolal aqueous solutions will be highest for

MCQ (More than One Correct Answer)

JEE Advanced 2017 Paper 1 Offline
For a solution formed by mixing liquids $$L$$ and $$M,$$ the vapor pressure of $$L$$ plotted against the mole fraction of $$M$$ in solution is shown i...
JEE Advanced 2016 Paper 2 Offline
Mixture (s) showing positive deviation from Raoult’s law at 35oC is (are)

Subjective

IIT-JEE 2004
1.22 g of benzoic acid is dissolved in 100 g of acetone and 100 g of benzene separately. Boiling point of the solution in acetone increases by 0.17 o...
IIT-JEE 2000
To 500 cm3 of water, 3.0 $$\times$$ 10-3 kg of acetic acid is added. If 23% of acetic acid is dissociated, what will be the depression in freezing poi...
IIT-JEE 1999
Nitrobenzene is formed as the major product along with a minor product in the reaction of benzene with a hot mixture of nitric acid and sulphuric acid...
IIT-JEE 1998
A solution of a nonvolatile solute in water freezes at -0.30oC. The vapour pressure of pure water at 298 K s 23.51 mm Hg and Kf for water is 1.86 K kg...
IIT-JEE 1996
The molar volume of liquid benzene (density = 0.877 g mL-1) increases by a factor of 2750 as it vaporises at 20oC and that of liquid toluene (density ...
IIT-JEE 1993
What weight of the non-volatile solute, urea(NH2 - CO - NH2) needs to be dissolved in 100g of water, in order to decrease the vapour pressure of water...
IIT-JEE 1991
The degree of dissociation of calcium nitrate in a dilute aqueous solution, containing 7.0 g. of the salt per 100 gm of water at 100oC is 70%. If the ...
IIT-JEE 1990
The vapour pressure of pure benzene at a certain temperature is 640 mm Hg. A non-volatile non-electrolyte solid weighing 2.175 g is added to 39.0 g of...
IIT-JEE 1989
The vapour pressure of a dilute aqueous solution of glucose (C6H12O6) is 750 mm of mercury at 373 K. Calculate (i) molality, and (ii) mole fraction of...
IIT-JEE 1986
The vapour pressure of ethanol and methanol are 44.5 and 88.7 mm Hg respectively. An ideal solution is formed at the same temperature by mixing 60 g o...
IIT-JEE 1983
An organic compound CxH2yOy was burnt with twice the amount of oxygen needed for complete combustion of CO2 and H2O. The hot gases when cooled to 0oC ...
IIT-JEE 1981
The vapour pressure of pure benzene is 639.7 mm of mercury and the vapour of a solution of a solute in benzene at the same temperature is 631.9 mm of ...
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