Problem Sheet Remidial Daily Test-1

Problem Sheet Remidial Daily test-1
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.
1.T/F Ammonia dissolved in water, NH3(aq), is a common household base.
2. T/F Acid solutions have a high pH.
3. T/F Oxides of metals like CaO form basic solutions when dissolved in water.
4. T/F Pure water is neutral because it contains no hydronium or hydroxide ions.
5. T/F An example of a strong acid is hydrochloric acid.
6. T/F Neutral solutions have equal numbers of H1+ ions and OH1- ions.
7. T/F The pH scale has a range from 1 to 14.
8. T/F Acids are sources of H1+ or hydronium ions.
9. T/F Binary acids are aqueous solutions of compounds like HCl, H2S, HBr.
10. T/F A polyprotic acid like sulfuric acid H2SO4 releases both H1+ ions at the same time.
11. T/F Nonmetal oxides like SO2 and CO2 combine with rain water to form acid precipitation.
12. T/F A pH of "7" is neutral for water solutions at 25 o C.
13. T/F Weak acids do not react with bases.
14. T/F Traditional acids like HCl(aq) react with traditional bases like NaOH(aq) to form water and a salt.
15. T/F The use of the term (aq) means a substance is dissolved in water.
16. T/F Acids are not found in nature.
17. T/F Seawater is neutral with a pH of "7".
18. T/F Human blood is acidic with a pH below "7".
19. T/F All acids that contain oxygen have a weak bond between hydrogen and oxygen.
20. T/F Hydroxide ions, OH1-, are released in water solutions of traditional bases.