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Chemistry

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The correct option for the value of vapour pressure of a solution at 45$$^\circ$$C with benzene to octane in molar ratio...
NEET 2021
The following solutions were prepared by dissolving 10 g of glucose (C6H12O6) in 250 ml of water (P1), 10 g of urea (CH4...
NEET 2021
The mixture which shows positive deviation from Raoult's law is :
NEET 2020 Phase 1
The freezing point depression constant (Kr) of benzene is 5. 12 K kg mol-1. The freezing point depression for the soluti...
NEET 2020 Phase 1
The mixture that forms maximum boiling azeotrope is :
NEET 2019
For an ideal solution, the correct option is :
NEET 2019
If molality of the dilute solution is doubled, the value of molal depression constant (Kf) will be
NEET 2017
At 100oC the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If Kb = 0.52, the boiling poin...
NEET 2016 Phase 1
Which of the following statements about the composition of the vapour over an ideal 1 : 1 molar mixture of benzene and t...
NEET 2016 Phase 1
Which one of the following is incorrect for ideal solution?
NEET 2016 Phase 2
The van't Hoff factor (i) for a dilute aqueous solution of the strong electrolyte barium hydroxide is
NEET 2016 Phase 2
Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of Al2(SO4)3 (if all are 100...
AIPMT 2015 Cancelled Paper
Which of them is not equal to zero for an ideal solution?
AIPMT 2015 Cancelled Paper
What is the mole fraction of the solute in a 1.00 m aqueous solution?
AIPMT 2015
The boiling point of 0.2 mol kg$$-$$1 solution of X in water is greater than equimolal solution of Y in water. Which on...
AIPMT 2015 Cancelled Paper
Of the following 0.10 m aqueous solutions, which one will exhibit the largest freezing point depression?
AIPMT 2014
Which condition is not satisfied by an ideal solution?
NEET 2013 (Karnataka)
How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO3? The concentrated ac...
NEET 2013
Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 25oC are 200 mm Hg and 41.5 mm Hg respectively. Va...
AIPMT 2012 Mains
pA and pB are the vapour pressure of pure liquid components, A and B, respectively of an ideal binary solution. If xA re...
AIPMT 2012 Prelims
A 0.1 molal aqueous solution of a weak acid is 30% ionized. If Kf for water is 1.86oC/m, the freezing point of the solut...
AIPMT 2011 Mains
The freezing point depression constant for water is $$-$$1.86o C m$$-$$1. If 5.00 g Na2SO4 is dissolved in 45.0 g H2O, t...
AIPMT 2011 Prelims
The van't Hoff factor $$i$$ for a compound which undergoes dissociation in one solvent and association in other solvent ...
AIPMT 2011 Prelims
200 mL of an aqueous solution of a protein contains its 1.26 g. The osmotic pressure of this solution at 300 K is found ...
AIPMT 2011 Mains
An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?
AIPMT 2010 Prelims
A solution of sucrose (molar mass = 342 g mol$$-$$) has been prepared by dissolving 68.5 g of sucrose in 1000 g of water...
AIPMT 2010 Prelims
A 0.0020 m aqueous solution of an ionic compound [Co(NH3)5(NO2)]Cl freezes at $$-$$ 0.00732oC. Number of moles of ions w...
AIPMT 2009
0.5 molal aqueous solution of a weak acid (HX) is 20% ionised. If Kf for water is 1.86 K kg mol$$-$$1, the lowering in f...
AIPMT 2007
Concentrated aqueous sulphuric acid is 98% H2SO4 by mass and has a density of 1.80 g mL$$-$$1. Volume of acid required t...
AIPMT 2007
1.00 g of a non-electrolyte solute (molar mass 250 g mol$$-$$1) was dissolved in 51.2 g of benzene. If the freezing poin...
AIPMT 2006
A solution containing 10 g per dm3 of urea (molecular mass = 60 g mol$$-$$1) is isotonic with a 5% solution of a nonvola...
AIPMT 2006
A solution of acetone in ethanol
AIPMT 2006
During osmosis, flow of water through a semipermeable membrane is
AIPMT 2006
A solution of urea (mol. mass 56 g mol$$-$$1) boils at 100.18oC at the atmospheric pressure. If Kf and Kb for water are ...
AIPMT 2005
A solution has a 1 : 4 mole ratio of pentane to hexane. The vapour pressures of the pure hydrocarbons at 20oC are 440 mm...
AIPMT 2005
The mole fraction of the solute in one molal aqueous solution is
AIPMT 2005
The vapour pressure of two liquids P and Q are 80 and 60 torr, respectively. The total vapour pressure of solution obtai...
AIPMT 2005
2.5 litre of 1 M NaOH solution is mixed with another 3 litre of 0.5 M NaOH solution. Then find out molarity of resultant...
AIPMT 2002
A solution contains non volatile solute of molecular mass M2. Which of the following can be used to calculate the molecu...
AIPMT 2002
A solution containing components A and B folloes Raoult's law
AIPMT 2002
Pure water can be obtained from sea water by
AIPMT 2001
From the colligative properties of solution, which one is the best method for the determination of molecular weight of p...
AIPMT 2000

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