Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Recent questions in Solutions
Questions
>>
JEEMAIN and NEET
>>
Chemistry
>>
Solutions
The unit of freezing point depression constant is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
medium
asked
Aug 6, 2014
by
meena.p
1
answer
The freezing point of a $0.05$ molal solution of a nonelectrolyte in water is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
medium
asked
Aug 6, 2014
by
meena.p
1
answer
The molar mass of acetic acid dissolved in benzene determined from the depression in freezing point is found to be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
medium
asked
Aug 6, 2014
by
meena.p
1
answer
The freezing point of equimolal solution will be lowest for
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
difficult
asked
Aug 6, 2014
by
meena.p
1
answer
Which of the following exhibits the greater freezing - point lowering ?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
difficult
asked
Aug 6, 2014
by
meena.p
1
answer
When a sugar- solution is slowly frozen, the first solid which separates out is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
difficult
asked
Aug 6, 2014
by
meena.p
1
answer
Pure Benzene freezes at $5.4 ^{\circ}\;C$. A solution of $0.223 \;g$ of phenyl acetic acid $(C_6 H_5 CH_2 COOH)$ in $4.4\;g$ benzene $(K_f =5.12 K\; Kg\;mol^{-1}) $ freezes at $4.47 ^{\circ}$ . From this observation , one can conclude that
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
difficult
asked
Aug 5, 2014
by
meena.p
1
answer
Assuming $ 100\%$ ionization , the increasing order of the freezing point of the solution will be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
easy
asked
Aug 5, 2014
by
meena.p
1
answer
A solution contains $0.1 \; mol$ of acetamide in 1L of glacial acetic acid . When the solution is cooled , the first crystals that appeared at the freezing point contain the molecules of
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
easy
asked
Aug 5, 2014
by
meena.p
1
answer
For an ideal solution containing a nonvolatile solute, Which of the following expression is correctly represented?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
easy
asked
Aug 5, 2014
by
meena.p
1
answer
The freezing point of equimolal aqueous solution will be highest for
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
easy
asked
Aug 5, 2014
by
meena.p
1
answer
Which of the following $0.1 \;M$ aqueous solution will have the lowest freezing point ?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
easy
asked
Aug 5, 2014
by
meena.p
1
answer
When mercuric iodide is added to an aqueous solution of potassium iodide the
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
freezing-point
colligative-properties
depression-of-freezing-point
medium
asked
Aug 5, 2014
by
meena.p
1
answer
$5 g$ of a nonvolatile compound (molar mass $50\; g \;mol^{-1}$) is added to 100 g of water . If the decrease of pressure is $11.31$ Torr, the vapour pressure of water will be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
vapour-pressure
colligative-properties
lowering-vapour-pressure
medium
asked
Aug 5, 2014
by
meena.p
1
answer
The vapour pressure of a solvent is found to be $400 mm$ Hg at $300 K$ When a certain amount of nonvolatile solute added to $50\;mol$ of the solvent its vapour pressure decreases to $360\;mm Hg$. The amount of solute added is:
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
vapour-pressure
colligative-properties
lowering-vapour-pressure
medium
asked
Aug 5, 2014
by
meena.p
1
answer
The Henry's law constant for the solubility of $N_2$ gas in water is $1.0\times 10^5$ atm.The mole fraction of $N_2$ in air is 0.8.The amount of $N_2$ from air dissolved in 10mol of water at 298K and 5 atm pressure is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
difficult
asked
Jul 23, 2014
by
sreemathi.v
1
answer
Twenty grams of hemoglobin in 1L solution at 300K is separated from pure water by a semipermeable.At equilibrium,the height of solution (density $1gcm^{-3}$) in a tube dipped in solution is found to be 83.1mm higher than in the tube dipped in water.If $g=10ms^{-2}$ ,the molar mass of hemoglobin is about
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
difficult
asked
Jul 23, 2014
by
sreemathi.v
1
answer
A solution containing $8.6gL^{-1}$ of urea (molar mass $60gmol^{-1}$) is isotonic with a 5% solution of unknown solute.The molar mass of the solute will be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 23, 2014
by
sreemathi.v
1
answer
The molar mass of sodium chloride determined by osmotic pressure would be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 23, 2014
by
sreemathi.v
1
answer
The freezing point of a solution containing 36g of a compound (empirical formula : $CH_2O$) in 1.20 kg of water is found to be $-0.93^{\large\circ}C$.The molecular formula of the solute is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 23, 2014
by
sreemathi.v
1
answer
A solution contains 10g of a solute and 116g of acetone at $30^{\large\circ}$C.Its vapour pressure is 290 Torr.If the vapour pressure of pure acetone is 300 Torr at $30^{\large\circ}$C,the molar mass of solute is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of a pure liquid A is 10.0 Torr at $27^{\large\circ}C$,One gram of B is dissolved in 20g of A,the vapour pressure is lowered to 90 Torr.If the molar mass of A is $200gmol^{-1}$,the molar mass of B is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of a solution of 5g of a nonelectrolyte in 100g water at a particular temperature is 2950 Pa and that of pure water at the same temperature is 3000 Pa.The molar mass of the solute is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of a solution having 2.0g of a solute X(molar mass $32gmol^{-1}$) in 100g of $CS_2$ (vapour pressure 854 Torr) is 848.9 Torr.The molecular formula of the solute is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The molar mass of benzoic acid in benzene as determined by depression in freezing point method corresponds to
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of a pure liquid A is 80 mmHg at 300K.It forms an ideal solution with liquid B.When the mole fraction of B is 0.4,the total pressure was found to be 88 mmHg.The vapour pressure of liquid A would be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
A binary solution contains 4 mol of A and 6 mol of B.Its vapour pressure is found to be 460mm Hg.To this solution,when 10 mol of B is added,its vapour pressure becomes 480mm Hg.The vapour pressures of pure A and pure B,respectively,are
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of n-hexane and n-heptane are 46 and 13mm Hg.If the vapour pressure of a solution of these two liquids is 38mmHg,the mole fraction of n-hexane in solution is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of pure benzene and toluence are 160 Torr and 60 Torr,respectively.The mole fraction of benzene in vapour phase in contact with equimolar solution of benzene and toluene would be
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of pure liquid is 70 Torr at $27^{\large\circ}C$.The vapour pressure of a solution of this liquid and another liquid (mole fraction 0.2) is 84 Torr at $27^{\large\circ}C$.The vapour pressure of pure liquid B at $27^{\large\circ}C$ is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
Which of the following solutions is expected to show negative deviations from Raoult's law?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
Which of the following solutions is expected to show positive deviations from Raoult's law?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour pressure of a solvent in a solution is proportional to
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The vapour-pressure lowering of a solvent is proportional to
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
An azeotropic solution of two liquids has a boiling point higher than either of the boiling points of the two liquids when it
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 22, 2014
by
sreemathi.v
1
answer
Which of the following is true?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The volume required to prepare 2.0L of 3.0M $H_2SO_4$ solution from 96% $H_2SO_4$ solution (density $1.83gmL^{-1}$) is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
composition-of-a-solution
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
An aqueous solution of HCl has 2% mass of HCl and a density of $1.02gcm^{-3}$ .The numerical values of molarity and molality,respectively, are
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
composition-of-a-solution
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The volume of 96% $H_2SO_4$ (density $1.83gmL^{-1}$) required to prepare 2.0L of 3.0M $H_2SO_4$ solution is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
composition-of-a-solution
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
What mass of ethanol be added to 1.0Kg water to have the mole fraction of ethanol equal to 0.20?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
composition-of-a-solution
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
A molal solution is one that contains one mole of a solute in
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
composition-of-a-solution
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The density of a 10.0% by mass KCl solution in water is $1.06gcm^{-3}$,its molarity is
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
composition-of-a-solution
easy
asked
Jul 22, 2014
by
sreemathi.v
1
answer
The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
The degree of dissociation $(\alpha)$ of a weak electrolyte $A_xB_x$ is related to Van't hoff factor (i) by the experiment
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
colligative-properties
vant-hoff
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
A solution contains 0.1 mol of acetamide in 1 L of glacial acetic acid.When the solution is cooled the first crystals that appeared at the freezing point contain the molecules of
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
colligative-properties
depression-of-freezing-point
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Which of the following colligative properties can provide molar mass of proteins (or polymers or colloids) with greater precision?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
molar-mass
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
A semipermeable membrane used in the measurement of osmotic pressure of a solution allows the passage of
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
Raoult's law is obeyed by each constituent of a binary liquid solution when
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 18, 2014
by
sreemathi.v
1
answer
A binary liquid solution of chloroform and acetone is prepared.Which of the following statements correctly represents the behaviour of this liquid solution?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 17, 2014
by
sreemathi.v
1
answer
A binary liquid solution of n-heptane and ethyl alcohol is prepared.Which of the following statements correctly represents the behaviour of this liquid solution?
jeemain
chemistry
physical-chemistry
class12
ch2
solutions
ideal-and-non-ideal-solutions
medium
asked
Jul 17, 2014
by
sreemathi.v
1
answer
Page:
« prev
1
2
3
4
5
next »
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...