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Total questions: 15
Worksheet time: 9mins
Molarity (in mol/l) of distilled or pure water is
18
81
55.56
49.87
On dissolving sugar in water at room temperature, solution feels cools to touch . Under which of the following dissolution of sugar will be most rapid ?
Sugar crystal I cold water
Sugar crystal in hot water
Powdered sugar in cold water
Powdered sugar in hot water
Low concentration of oxygen in blood of people living at high altitude is due to
Low temperature
Low atmospheric pressure
High atmospheric pressure
Both low temperature and high atmospheric pressure
The value of Henry's Constant is
Greater for gases with higher solubility
Greater for gases with lower solubility
Constant for all gases
Raoult's law become a special case of Henry's law , when
KH=p°i
KH>p°i
KH<p°i
Colligative property depends on
Nature of solute particles dissolved in solution
Number of solute particles in solution
Physical property of the solute particles
Nature of solvent particles
The value of Henry's Constant for He, H2, and O2 are 144.97, 69.16, and 34.86 bar. The correct order of their solubility is
O2<He<H2
He<O2<H2
He<H2<O2
H2<He<O2
A (a) is a homogeneous mixture of two or more substances
From the below options, choose the correct example for gaseous solutions
Oxygen dissolved in water
Camphor in nitrogen gas
Carbon dioxide in water
Hydrogen in palladium
The solubility of a substance in a solvent depends on
Temperature
Pressure
Nature of solute and solvent
All are correct
Which of the following does not dissolve in benzene
Naphthalene
Anthracene
Glucose
All are correct
Choose the ideal solution from the following
Carbon disulphide and acetone
Chloroform and acetone
Ethyl iodide and ethyl bromide
How is Henry's Constant dependent on temperature?
Directly proportional
Inversely proportional
Varies exponentially
None of the above
5.12g of urea is dissolved in 1L of water and 68.4g sucrose is dissolved in 1L of water. Relative lowering of vapour pressure of urea solution is:
Greater than sucrose solutions
Less than sucrose solution
Double that of sucrose solution
Equal to that of sucrose solution
When two perfect solution with volume V each are combined, what is the volume of solution as a result
V
2V
Greater than 2V
Less than 2V
