Acids & Bases Quiz

Name Date Period

1. The table below shows the color of the indicators methyl 9. Which two compounds are electrolytes?
orange and litmus in two samples of the same solution.
(1) C6H 12 O6 and CH3CH 2OH
(2) C6H 12 O6 and HCl
(3) NaOH and HCl
(4) NaOH and CH3CH 2OH
10.Which compound dissolves in water to form an aqueous
solution that can conduct an electric current?
Which pH value is consistent with the indicator results? (1) CC1 4 (3) CH 3COOH
(1) 1 (2) 5 (3) 3 (4) 10 (2) C2H 5OH (4) CH 4
2. Which reaction represents the process of 11. A substance is classified as an electrolyte because
neutralization? (1) it has a high melting point
(1) Mg(s) + 2 HCl(aq) ® MgCl 2(aq)+ H 2(g) (2) it contains covalent bonds
(2) HCl(aq) + KOH(aq) ® KCl(aq)+ H 2O( ) (3) its aqueous solution conducts an electric current
(3) Pb(NO 3)2(aq) + CaCl(aq) ® Ca(NO3)2(aq)+ PbCl 2(s) (4) its aqueous solution has a pH value of 7
(4) 2 KClO3(s) ®KCl(s)+ 3 O 2(g) 12. Which change in pH represents a hundredfold increase
3. A hydrogen ion, H +, in aqueous solution may also be in the concentration of hydronium ions in a solution?
written as (1) pH1 to pH 2 (3) pH 2 to pH 1
(1) H 2O (2) H 2O2 (3) H 3O+ (4) OH- (2) pH 1 to pH 3 (4) pH 3 to pH 1
4. Water containing dissolved electrolyte conducts 13. Which relationship is present in a solution that has a
electricity because the solution contains mobile pH of 7?
(1) electrons (3) atoms (1) [H+] = [OH–] (3) [H+] < [OH–]
(2) molecules (4) ions (2) [H+] > [OH–] (4) [H+] + [OH–] = 7
5. Which of the following aqueous solutions is the best 14. The pH of an aqueous solution changes from 4 to 3
conductor of electricity? when the hydrogen ion concentration in the solution is
(1) 0.10 M CH3OH (3) 0.10 M NaOH (1) decreased by a factor of
(2) 1.0 M CH3OH (4) 1.0 M NaOH (2) decreased by a factor of 10
6. Which word equation represents a neutralization (3) increased by a factor of
reaction? (4) increased by a factor of 10
(1) base + acid ® salt + water 15. When placed in a solution with a pH of 9, litmus will be
(2) base + salt ® water + acid (1) red and phenolphthalein colorless
(3) salt + acid ® base + water (2) red and phenolphthalein pink
(4) salt + water ® acid + base (3) blue and phenolphthalein colorless
7. According to Reference Table M, what is the color of the (4) blue and phenolphthalein pink
indicator methyl orange in a solution that has a pH of 2?
16. Which indicator is blue in a solution that has a pH of
(1) blue (3) orange 5.6?
(2) yellow (4) red (1) bromcresol green (3) methyl orange
8. One alternate acid-base theory states that an acid is an (2) bromthymol blue (4) thymol blue
(1) H + donor (3) OH- donor
(2) H + acceptor (4) OH- acceptor

Ms. Roman Page 1 Regents Chemistry

 Acids & Bases Quiz

17. Which statement correctly describes a solution with a 22. As an aqueous solution becomes more acidic, the
pH of 9? hydroxide ion concentration
(1) It has a higher concentration of H 3O+ than OH– (1) decreases (3) remains the same
and causes litmus to turn blue. (2) increases
(2) It has a higher concentration of OH– than H 3O+ 23. A student was given four unknown solutions. Each
and causes litmus to turn blue.
solution was checked for conductivity and tested with
(3) It has a higher concentration of H 3O+ than OH– phenolphthalein. The results are shown in the data
and causes methyl orange to turn yellow. table below.
(4) It has a higher concentration of OH– than H 3O+
and causes methyl orange to turn red.
18. The results of testing a colorless solution with three
indicators are shown in the table below.

Based on the data table, which unknown solution could

be 0.1 M NaOH?
(1) A (2) B (3) C (4) D
Which formula could represent the solution tested?
24. Given the following solutions:
(1) NaOH(aq) (3) C6H 12 O6(aq)
(2) HCl(aq) (4) C12 H 22 O11 (aq) Solution A: pH of 10
19. What are the products of a reaction between KOH(aq) Solution B: pH of 7
and HCl(aq)? Solution C: pH of 5

(1) H 2 and KClO (3) KH and HClO Which list has the solutions placed in order of
increasing H+ concentration?
(2) H 2O and KCl (4) KOH and HCl
(1) A, B, C (3) C, A, B
20. Which of the following pH values indicates the highest
concentration of hydronium ions in a solution? (2) B, A, C (4) C, B, A

(1) pH = 1 (3) pH = 3 25. Which statement describes the characteristics of an

Arrhenius base?
(2) pH = 2 (4) pH = 4
(1) It changes blue litmus to red and has a pH less
21. The table below was compiled from experimental
than 7.
laboratory data.
(2) It changes blue litmus to red and has a pH greater
than 7.
(3) It changes red litmus to blue and has a pH less
than 7.
(4) It changes red litmus to blue and has a pH greater
than 7.
26. Both HNO 3(aq) and CH 3COOH(aq) can be classified as

At what pH would all three indicators appear as (1) Arrhenius acids that turn blue litmus red
yellow? (2) Arrhenius bases that turn blue litmus red
(3) Arrhenius acids that turn red litmus blue
(1) 1.9 (2) 2.9 (3) 4.7 (4) 8.7
(4) Arrhenius bases that turn red litmus blue

Ms. Roman Page 2 Regents Chemistry

 Acids & Bases Quiz

27. Beakers A, B, C, and D shown below each contain a 28. A solution with a pH of 11 is first tested with
different solution. phenolphthalein and then with litmus. What is the
color of each indicator in this solution?
(1) Phenolphthalein is colorless and litmus is blue.
(2) Phenolphthalein is colorless and litmus is red.
(3) Phenolphthalein is pink and litmus is blue.
(4) Phenolphthalein is pink and litmus is red.
29. A student tested a 0.1 M aqueous solution and made
the following observations:

• conducts electricity
• turns blue litmus to red
• reacts with Zn(s) to produce gas bubbles
The bulb will glow when the conductivity apparatus is
placed into which beakers? Which compound could be the solute in this solution?

(1) A and B (3) A and D (1) CH 3OH (3) HBr

(2) B and C (4) C and D (2) LiBr (4) LiOH
30. Which compound is produced when HCl(aq) is
neutralized by Ca(OH)2(aq)?
(1) CaCl 2 (2) CaH 2 (3) HClO (4) HClO2

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