Formative true/false exercise

Acids, bases, pH, pOH, pKa, dissociation of water, neutralization

The following are a series of true false questions that are a preview of the chapter content.


Ammonia dissolved in water, NH3(aq), is a common household base.

2. False

Acid solutions have a high pH.

3. True

Oxides of metals like CaO form basic solutions when dissolved in water.

4. False

Pure water is neutral because it contains no hydronium or hydroxide ions.

5. True

An example of a strong acid is hydrochloric acid.

6. True

Neutral solutions have equal numbers of H1+ ions and OH1- ions.

7. False

The pH scale has a range from 1 to 14.

8. True

Acids are sources of H1+ or hydronium ions.

9. True

Binary acids are aqueous solutions of compounds like HCl, H2S, HBr.

10. False

A polyprotic acid like sulfuric acid H2SO4 releases both H1+ ions at the same time.

11. True

Nonmetal oxides like SO2 and CO2 combine with rain water to form acid precipitation.

12. True

A pH of "7" is neutral for water solutions at 25 o C.

13. False

Weak acids do not react with bases.

14. True

Traditional acids like HCl(aq) react with traditional bases like NaOH(aq) to form water and a salt.

15. True

The use of the term (aq) means a substance is dissolved in water.

16. False

Acids are not found in nature.

17. False

Seawater is neutral with a pH of "7".

18. False

Human blood is acidic with a pH below "7".

19. True

All acids that contain oxygen have a weak bond between hydrogen and oxygen.

20. True

Hydroxide ions, OH1-, are released in water solutions of traditional bases.

 Dr. Walt Volland all rights reserved 1997-2005 revised April 30, 2005