SAT Chemistry Practice Test: Acids and Bases

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Question 17 questions

Time 13 minutes

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1. A stronger base

A. is also a stronger acid
B. is also a stronger electrolyte
C. tastes sour
D. yields fewer OH1- ions in solution
E. is easier to neutralize

2. When HCl(aq) reacts with Zn(s) the prod ucts formed are

A. water and a salt
B. an acid and a base
C. a salt and hydrogen gas
D. a nonmetal oxide
E. a metal oxide

3. A substance is added to a solution containing two drops of phenolphthalein. The solution then turns pink. Which substance would produce this color change?

A. HCl
B. H2CO3
C. KOH
D. CH3CH2OH
E. CH3OH

4. Litmus is red when the H1+ concentration in the solution is

A. 1 × 10-11 M
B. 1 × 10-9 M
C. 1 × 10-7 M
D. 1 × 10-5 M
E. 1 × 10-14 M

5. A substance is dissolved in water and the only positive ions in the solution are H1+ ions. This substance is

A. KOH
B. NaH
C. H2SO4
D. NH3
E. CH4

6. Which is true about a solution that is acidic?

A. [H1+] equals zero.
B. [OH1-] equals [H1+].
C. [H1+] is less than [OH1-].
D. [H1+] is greater than [OH1-].
E. Kw = 1 × 10-7.

7. According to the Bronsted-Lowry theory, a base can

A. donate a proton
B. yield H1+ ions
C. donate an electron pair
D. accept an electron pair
E. accept a proton

8. What volume of 0.200 M NaOH(aq) is needed to neutralize 40.0 mL of a 0.100 M HCl(aq)?

A. 100.0 mL
B. 80.0 mL
C. 40.0 mL
D. 20.0 mL
E. 10.0 mL

9. As an acidic solution is titrated with drops of base, the pH value of the solution will

A. increase
B. decrease
C. remain the same
D. approach zero
E. none of the above

10. Which pH value demonstrates a solution with the greatest concentration of OH1- ions?

A. 1
B. 7
C. 10
D. 12
E. 14

11. The reaction: HI(aq) + LiOH(aq) →H2O(l) + LiI(aq) is classified as

A. a single replacement
B. a neutralization reaction
C. the process of hydrolysis
D. a synthesis reaction
E. an oxidation-reduction reaction

12. How many times stronger is an acid with a pH of 2 than an acid with a pH of 5?

A. A pH of 2 is three times as strong.
B. A pH of 2 is one thousand times as strong.
C. A pH of 2 is three times as weak.
D. A pH of 2 is one thousand times as weak.
E. A pH of 5 is three thousand times as strong.

13. Which substance below is expected to be the strongest electrolyte?

A. Chlorous acid
B. Water
C. Acetic acid
D. Hydrofluoric acid
E. Hypochlorous acid

14. Which of the following statements is true?

A. NaCl is a neutral salt.
B. KC2H3O2 is an acidic salt.
C. KOH is an acid.
D. HCl and KOH react to form hydrogen gas and water.
E. NaBr is basic salt.

15. Which pairing is not a set of conjugates?

A. OH1– and H2O
B. HC2H3O2 and C2H3O21–
C. HCl and Cl1–
D. NH3 and NH41+
E. H2SO4 and SO42–

16. Which reaction below is incorrect based upon the reactants given?

A. HF + LiOH → H2O + LiF
B. 2HCl + Zn → H2O + ZnCl2
C. SO2 + H2O → H2SO3
D. K2O + H2O → 2KOH
E. All of the above reactions are correct.

17. Which compound below is not correctly paired with its name?

A. KOH is potassium hydroxide.
B. H2SO3 is sulfurous acid.
C. HI is hydroiodic acid.
D. HClO2 is chloric acid
E. H3PO4 is phosphoric acid.