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Online Tests
Chemistry Fsc Part 1 Chapter 9 Online Test MCQs With Answers
Question # 1
Which concentration unit is independent of temperature.
Choose an answer
Molarity
Molality
ppm
both a and b
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Question # 2
A solution of glucose is 10% The volume in which 1 g mole of it dissolved will be.
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1 dm3
1.8 dm3
900 cm3
200 cm3
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Question # 3
An aqueous solution of ethanol in water has vapour pressure.
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Equal to that of water
Equal to that of ethanol
More than that of water
Less than that of water
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Question # 4
An aqueous solution of ethanol is water has vaporu pressure.
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Equal to the of water
Equal to that of ethanol
More than that of H2O
Less than that of water
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Question # 5
When an ionic compound is dissolved in water, it dissociate into positive and negative ions, which are surrounded byH2O molecule, This process is known as.
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Hydrolysis
Hydration
Saturation
solvolysis
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Question # 6
The molal boiling point constant is the ratio of elevation of boiling point to
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Molarity
Mole fraction of solvent
Molality
Mole fraction of solute
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Question # 7
Which one of the following salts dissolved in water to form a solution with a pH greater than 7
Choose an answer
NaCl
CuSO4
Na2CO3
NH4Cl
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Question # 8
Butter is solution of
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Liquid in liquid
Solid and liquid
Liquid and solid
Liquid and gas
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Question # 9
The molar boiling point constant is the ratio of the elevation of boiling point to .
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Molarity
Molality
Mole fraction of solvent
Mole fraction of solute
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Question # 10
Heat of solution of an ionic compound is equal to.
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Hydration energy
Lattice energy
Slum of both 'a' and 'b'
Difference of both a and b
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Question # 11
Solubility curve of CaCl26H2O shows
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Decrease in solubility with increase of temperature
Increase in solubility with increase of temperature
Discontinuous increase in solubility with temperature
No effect of temperature on solubility
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Question # 12
Which of the following solution s has the highest boiling point.
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5.85% solution of sodium chloride
18.0 % solution of glucose
6.0% solution of urea
All have the same boiling point
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Question # 13
Depression in the F.P is directly proportional to
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Molarity of solution
Molarity of solvent
Molality of solvent
Molality of solution
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Question # 14
Relative lowering of vapour pressure is equal to.
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Mole fraction of solute
Mole fraction of solvent
Mole fraction of solute and solvent
Molality of solution
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Question # 15
Which one of the following salts dissolved in water to form a solution with a pH lesser than 7
Choose an answer
NaCl
CuSO4
Na2CO3
NH4Cl
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Question # 16
The sum of mole percent of all the components of solution is always equal to.
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Unity
100
Less than one
Less than 100
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Question # 17
In case of non volatile solute, lowering of vapour pressure is proportional to.
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Mass fraction of solute
Mole fraction of solvent
Mole fraction of solute
None of the above
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