Solutions Test 5

05:57:00 Unknown 0 Comments

Solutions A test from chapter 9 i.e Solution of Chemistry part 1. This is Free online test for FSc and Entry test Preparation for UET, NUST, FAST, GIKI, PIEAS, NFC, Punjab University, UHS, other Engineering Universities and Medical Colleges.


1. Which of the following solutions has the highest boiling point?
    A) 5.85% solution of NaCl
    B) 18.0% solution of glucose
    C) 6.0% solution of urea
    D) all have same boiling point


2. Two solutions of NaCl and KCl are prepared separately by dissolving same amount of the solute in water. Which of the following statements is true for these solutions

    A) KCl solution will have higher boiling point than NaCl solution
    B) both the solutions have same boiling point
    C) KCl and NaCl solutions possess same vapour pressure
    D) none


3. Molarity of pure water is

    A) 1
    B) 18
    C) 55.5
    D) 6


4. 18 gm glucose is dissolved in 90 gm of water. The relative lowering of vapour pressure is equal to

    A)
    B) 5.1
    C)
    D) 6


5. The molar boiling point constant is the ratio of the elevation in boiling point to

    A) molarity
    B) molality
    C) mole fraction of solvent
    D) less than that of water


6. An aqueous solution of methanol in water has vapour pressure

    A) equal to that of water
    B) equation to that of methanol
    C) more than that of water
    D) less than that of water


7. An ozeotropic mixture of two liquids boils at a lower temperature than either of them when

    A) it is saturated
    B) it shows positive deviation from Raoult’s law
    C) it shows negative deviation from Raoult’s law
    D) it is metastable


8. In azeotropic mixture showing positive deviation from Raoult’s law, the volume of mixture is

    A) slightly more than the total volume of components
    B) slightly less than the total volume of the component
    C) equal to the total volume of the components
    D) none


9. A solution of glucose is 10%. The volume in which 1 gm mole of it is dissolved will be

    A) 1 dm3
    B) 1.8 dm3
    C) 200 cm3
    D) 900 cm3


10. Colligative properties are the properties of

    A) dilute solutions which behave as nearly ideal solutions
    B) concentrated solutions which behave as nearly non–ideal solutions
    C) both
    D) none

I am Mechatronics and Control Engineer from UET, Lahore. Helping Engineering students gives me pleasure.

You Might Also Like

0 comments:

Confused? Feel Free To Ask
Your feedback is always appreciated. We will try to reply to your queries as soon as time allows.

Subscribe to: Post Comments (Atom)