Which of the following change with increase in temperature
5.85 g of NaCl is dissolved in 500 ml ofwater.
The molarity is
The volume of water that must be added to a mixture of 250 ml of M HCl and 750 ml of 2 M HCl to obtain 2.5 M solution is
When a saturated solution of sodium chloride is heated, it becomes
attains equilibrium conditions
0.1 M solution of glucose and 0.1 M solute of urea are placed on two sides of semipermeable membrane to equalheights.
Which of the following is correct
Glucose solution will move into urea solution.
There will be flow of water from glucose side to urea.
There will be no net flow across the membrane.
There will be flow of water from urea side to glucose.
The molarity of 6% (W/V) solution of acetic acid is
A crystal of blue vitriol is placed in its saturatedsolution.
Which of the following observations would you expect to make provided the temperature is constant
A super � saturated solution will be formed
No change will occur
Crystals will separate out
The crystals will be dissolved
For dilute solutions, Raoults law states that
the relative lowering in vapour pressure is equal to the mole fraction of the solute
the relative lowering in vapour pressure is equal to the amount of solvent in the solution
the vapour pressure of the solution is proportional to that of the solvent
lowering of vapour pressure is equal to the mole fraction of the solution
According to Raoults law, the relative lowering of vapour pressure of a solution of non-volatile solute is
equal to mole fraction of solute
equal to normality of the solution.
directly proportional to mole fraction of solute
equal to mole fraction of solvent
Isotonic solutions are those which have same
Osmotic pressure of a solution of electrolyte does not depend on
I. Nature of solute
II. Nature of solvent
What volume of 0.8 M solution contains 0.1 mole of the solute
Hydrochloric acid solutions A and B have concentrations 0.5 N and 0.1 Nrespectively.
The volumes of solutions A and B required to make 2 litres of 0.2 N hydrochloric acid are
1.5 L of A + 0.5 L of B
0.75 L of A + 1.25 L of B.
0.5 L of A + 1.5 L of B
1.0 L of A + 1.0 L of B
An azeotropic solution of two liquids has boiling point lower than ether when it
shows a positive deviation from Raoults law
shows no deviation from Raoults law
shows a negative deviation from Raoults law
In the phenomenon of osmosis, the semipermeable membrane allows the passage if
solvent molecules only
both solute and solvent
Increasing the temperature of an aqueous solution will cause decrease in
A liquid is in equilibrium with its vapour at its boilingpoint.
On the average, the molecules of the two phases will have
same free energy.
same magnitude of Interparticle forces
same potential energy
same total energy
Which of the following are not colligative properties
Relative lowering of vapour pressure
Both b and c.
�Partial vapour pressure of a solution component is directly proportional to its mole fraction�. This statement is known as
Ostwalds dilution law.
Ebullioscopic constant depends upon
nature of solvent
conditions of temperature and pressure
nature of solute
all the above factors.
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