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
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
2 / 50
2. A mixture of iron filings and copper filings could best be separated by _________
3 / 50
A plot showing the variation of volume with temperature at constant pressure is called __________
4 / 50
4. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________
5 / 50
The mathematical equation for Charles law can be written as ________
6 / 50
Physical Chemistry is concern with two major aspects, namely ability to change and _____
7 / 50
Gas molecules confined to a container are in a state of ____________ motion
8 / 50
8. Distillation can be used to separate ________
9 / 50
9. Which of the followings is not a characteristic of an ideal solution?
10 / 50
The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3
11 / 50
________ is an instrument that can be used to measure the strength of an acid or a base
12 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
13 / 50
Constituents in a solution can be separated by applying the principle of ___________
14 / 50
The gas law that explain the effusion of gas is ____________
15 / 50
15. The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.
16 / 50
In a gas. the molecules on the average are separated by large ______ distances
17 / 50
17. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
18 / 50
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.
19 / 50
At relatively low pressure, there are no ___________ forces between gas molecules
20 / 50
Meter, kelvin, second and kilogram are examples of _______
21 / 50
Modern approach to chemistry deals with equilibrium properties, ability to change and ______
22 / 50
At low temperature and high pressure, gases tend to __________
23 / 50
-______is a state of matter that does not have a definite shape nor volume
24 / 50
At constant pressure, properties of gases that undergo changes are _______
25 / 50
25. 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?
26 / 50
26. Which of the followings will not diffract X-rays?
27 / 50
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 __________
28 / 50
The process of separating a pure substance from a solution is called _______
29 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
30 / 50
An expression for the combined gas law can be expressed as ________
31 / 50
31. 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.
32 / 50
32. In fractional distillation, a mixture of liquids is separated based on their _______
33 / 50
33. Ethanol dissolved in water would be an example of ___________
34 / 50
The equation of ideal gas can be expressed as ______
35 / 50
Numerical value of the universal gas constant is ____ J/K/mol
36 / 50
36. Which of the following is not a colligative property?
37 / 50
The rate at which gases diffuse is inversely proportional to the Square root of their ____________
38 / 50
38. An atom on the face-centre of a unit cell is shared by _________ unit cells.
39 / 50
39. Which of the following statements is false?
40 / 50
At high temperature and low pressure, gases tend to undergo phenomena that is called ___________
41 / 50
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance
42 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
43 / 50
A gas that obeys all the gas laws is called an ______
44 / 50
Temperature, length, time and mass are examples of ________
45 / 50
The individual pressure of a gas in a mixture of gases is called ______
46 / 50
A homogenous materials that contain only one substance is called a ___________
47 / 50
47. A liquid will "wet" a surface if: ______
48 / 50
48. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?
49 / 50
At constant temperature, the gas law that is most suitable is called _____ law
50 / 50
50. Which of these alkanes is expected to have the highest viscosity?
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