1st Year Chemistry MCQS with Answers Chapter 9

1st Year Chemistry MCQS with Answers
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A solution of glucose is 10% to volume in which 1 g mole of it is dissolved will be
1 dm3
900 cm3
200 cm3
1.8 dm3

Two solution of NaCI and KCI are prepared separately by dissolving same moles of them in the fixed amount of solvent. Which of the following statements is true for these solution
KCI solution will have higher boiling point than NaCI solution
Both the solutions have different boiling point
KCI solution possesses lower freezing point than NaCI solution
KCI and NaCI solution possess same vapour pressure

In azeotropic mixture showing positive deviation from Raoult’s law the volume of the mixture is
Slightly less than the total volume of the components
Slightly more than the total volume of the components
Equal to the total volume of the components
None of these

Which of the following solutions will have the highest boiling point
0.1 M FeCI3
0.1 M CaCI2
0.1 M NaCI
0.1 M glucose

Molarity of pure water is

The unit of mole fraction is
Moles dm-3
Gram dm-3
Moles kg-1

Colligative properites are the properties of
Concentrated solution which behave as nearly non-ideal solution
Both a and b
Neither a nor b
Dilute solutions which behave as nearly ideal solution

The molal boiling point constant is the ration of the elevation in boiling point to
Mole fraction of solute
Mole fraction of solvent

Which of the following solutions has the highest boiling point
All have the same boiling points
6.0% solution of urea
5.85% solution of sodium chloride
18.0% solution of glucose

Depression of freezing point method is used for determination of molar masses of
Non-volatile solids
Volatile solids
Volatile liquids

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