CHM103




Category: CHM103

0

ATTENTION:

Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.

Good luck!


CHM103

1 / 50

1.
 A plot showing the variation of volume with temperature at constant pressure is called __________


2 / 50

2.
The rate at which gases diffuse is inversely proportional to the Square root of their ____________


3 / 50

3.
Apparatus that arc basically used for determining the melting points of substances are called ____________


4 / 50

4.
At high temperature and low pressure, gases tend to undergo phenomena that is called  ___________


5 / 50

5.

A solution is prepared by dissolving calcium chloride in water and diluting to 500.0 mL. If this solution contains 44 ppm chloride ions, the concentration of
calcium ions is __________ ppm.

6 / 50

6.
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____


7 / 50

7.
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________

8 / 50

8. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?

9 / 50

9. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.

10 / 50

10.
________ is an instrument that can be used to measure the strength of an acid or a base

11 / 50

11. Which of these alkanes is expected to have the highest viscosity?

12 / 50

12.
In a gas. the molecules on the average are separated by large ______ distances


13 / 50

13.
The mathematical equation for Charles law can be written as ________

14 / 50

14. A sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25 $^{o}C$. What volume would it occupy at 25$^{o}C$ if the pressure were decreased to 730 torr?

15 / 50

15. The vapor pressure of pure ethanol at 60 °C is 0.459 atm. Raoult's Law predicts that a solution prepared by dissolving 10.0 mmol naphthalene (nonvolatile) in 90.0 mmol ethanol will have a vapour pressure of __________ atm.

16 / 50

16. Distillation can be used to separate ________

17 / 50

17.
At low temperature and high pressure, gases  tend to __________


18 / 50

18. Which measurement describes the pressure of a gas?

19 / 50

19.
The temperature, above which a substances can exist only in gaseous state is called _________


20 / 50

20. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?

21 / 50

21.
Constituents in a solution can be separated by applying the principle of ___________


22 / 50

22. A liquid will "wet" a surface if: ______

23 / 50

23. Which of the following statements is false?

24 / 50

24.
At constant pressure, properties of gases that undergo changes are _______


25 / 50

25.
The gas law that consider the total pressure of a gas as a function of the pressures exerted by the individual gases that make up the mixture is __________


26 / 50

26. Which of the followings is not a characteristic of an ideal solution?

27 / 50

27. A mixture of iron filings and copper filings could best be separated by _________

28 / 50

28.
International system of unit or system international can be written as an acronym _______________


29 / 50

29.
A gas that obeys all the gas laws is called an ______


30 / 50

30. The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.

31 / 50

31.
The mathematical equation for Boyle's law can be written as ___________

32 / 50

32.
 At constant temperature, the gas law that is most suitable is called _____ law

33 / 50

33. The Henry's law constant for helium gas in water at 30 °C is 0.00037 M/atm. When the partial pressure of helium above a sample of water is 0.650 atm, the concentration of helium in the water is __________ M.

34 / 50

34. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________

35 / 50

35.
-______is a state of matter that does not have a definite shape nor volume


36 / 50

36.
Numerical value of the universal gas constant is ____ J/K/mol


37 / 50

37. In fractional distillation, a mixture of liquids is separated based on their _______

38 / 50

38.
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance

39 / 50

39.
 A homogenous materials that contain only one substance is called a ___________


40 / 50

40.
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas


41 / 50

41.
The process of separating a pure substance from a solution is called _______


42 / 50

42. Which of the followings will not diffract X-rays?

43 / 50

43.
Gas molecules confined to a container are in a state of ____________ motion

44 / 50

44. Ethanol dissolved in water would be an example of ___________

45 / 50

45.
Modern approach to chemistry deals with equilibrium properties, ability to change and ______

46 / 50

46.
Meter, kelvin, second and kilogram are  examples of _______


47 / 50

47.
The individual pressure of a gas in a mixture of gases is called ______

48 / 50

48. An atom on the face-centre of a unit cell is shared by _________ unit cells.

49 / 50

49.
An expression for the combined gas law can be expressed as ________


50 / 50

50.
Physical Chemistry is concern with two major aspects, namely ability to change and ­_____


Rate this quiz




Hello NOUNITES! Join other NOUNITES on Whatsapp and Telegram below, EXCLUSIVE UPDATES awaits you from various study centres and happenings in NOUN. Stay updated
 
Don't miss out, JOIN OVER 22,000 other students already following our platforms

FOLLOW WHATSAPP CHANNEL  FOLLOW TELEGRAM CHANNEL 
    
JOIN WHATSAPP GROUP   JOIN TELEGRAM GROUP
close-link