Lesson: Chapter - 5

Practice Questions

1. Statement I Statement II
Ice, unlike most substances, is denser than water in the liquid phase. BECAUSE   In water, hydrogen bonds can form between the positively charged H atom on one water molecule and the slightly negatively charged O atom on a nearby water molecule.
2. Which of the following gases would be the densest at standard temperature and pressure?
(A) Helium
(B) Argon
(C) Carbon dioxide
(D) Xenon
(E) Nitrogen
3. In the laboratory, a sample of hydrogen is collected by water displacement. The sample of hydrogen has a volume of 25 mL at 24.0ºC and a barometric pressure for the day of 758 mmHg. What is the pressure of the dry gas at this temperature? (The vapor pressure of water at 24.0ºC is 22.4 mmHg.)
(A) 455 mmHg
(B) 470 mmHg
(C) 736 mmHg
(D) 758 mmHg
(E) 780 mmHg
4. Calculate the approximate amount of heat necessary to raise the temperature of 50.0 grams of liquid water from 10.0ºC to 30.0ºC. (The specific heat of water liquid is 4.18 J/gºC.)
(A) 20 J
(B) 80 J
(C) 100 J
(D) 200 J
(E) 4,180 J
5. Using the sketch of the phase diagram for water given above, determine which of the following statements is incorrect:)
(A) The triple point is point A. This is the point at which all three phases are in equilibrium with one another.
(B) The line AB is the line representing the solid-liquid equilibrium line. Anywhere along this line the substance could melt or freeze.
(C) The slope of line AB is negative. This slope indicates that the solid is much denser than the liquid.
(D) Line AD represents the phase changes of sublimation and deposition.
(E) Line AC represents where the substance would condense and vaporize.
6. Statement I Statement II
Most ionic solids have high melting points. BECAUSE   Ionic solids are made up of positive and negative ions held together by electrostatic attractions.
7. Which of the following best illustrates a graph of pressure versus volume for a gas at constant temperature?
(A)
(B)
(C)
(D)
(E)
8. Which of the following solutions would probably have the highest boiling point?
(A) 0.100 m KOH
(B) 0.100 m Na2SO4
(C) 0.100 m C6H12O6
(D) 0.200 m CaCl2
(E) 0.200 m CH3CH2OH
9. Which of the following must be measured in order to calculate the molality of a solution?
I. Mass of the solute II. Mass of the solvent III. Total volume of the solution
(A) I only
(B) I and III only
(C) II and III only
(D) I and II only
(E) I, II, and III
10. The molarity of a solution that is composed of 80.00 g of sodium hydroxide dissolved in 2.0 L of solution is
(A) 1.0 M
(B) 2.0 M
(C) 4.0 M
(D) 40.0 M
(E) 160.0 M
11. Which of the following substances would dissociate completely when placed into excess amounts of distilled water?
(A) C2H5OH
(B) HC2H3O2
(C) LiNO3
(D) Mg(OH)2
(E) All of these will dissociate completely in water
12. Statement I Statement II
The solubility of carbon dioxide in a soft drink decreases with a decrease in pressure. BECAUSE   The solubility of a gas generally increases with an increase in temperature.
13. The molarity of a solution obtained when 50.0 mL of 6.0 M HCl is diluted to a final volume of 300.0 mL is
(A) 0.01 M
(B) 0.10 M
(C) 0.20 M
(D) 0.30 M
(E) 1.0 M
14. Which of the following solutes and solvents would be expected to form stable solutions?
(A) I only
(B) I and II only
(C) III only
(D) I, II, and III only
(E) I, II, and IV only
Back Next

Next to display next topic in the chapter.

Practice Questions

Test Prep Lessons With Video Lessons and Explained MCQ

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

Quantitative Aptitude Reasoning English General Knowledge Picture Patterns
More for You
MCQ with question Explanations Scholarships and Financial Aid

Number Series

How to crack Number Series section of the test

Issue Analysis

How to deal with writing section - Issue Analysis

Chemistry for Test Preparation

Lessons with Practice questions -MCQs for Chemistry for Test preparation

All in this Category

You may be interested in

Colleges in cities of Sindh

Comprehensive lists of colleges in ...

Colleges in Lahore

Find a comprehensive list of major ...

Interviews

How to deal with job or admission I ...

Study in Germany

How you can get an opportunity to h ...

Admission and Employment Tests

Announcements of Admission and Empl ...

GRE Bio-Chemistry

Find what is GRE Bio-Chemistry and ...

Bahauddin Zakariya University - Enginering

Engineering degrees from Bahauddin ...

UAF University of Agriculture

The oldest agri university is Pakis ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA