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