Acids, Bases, and Salts: Interactive Learning Quizzes for High School Seniors

Question 1

Which of the following is an Arrhenius acid (donates H+ ions in water)?

Accepted Answer

HCl

Answer

NaOH

Answer

NH3

Answer

CH3OH

Question 2

Which of the following aqueous solutions has the highest conductivity?

Accepted Answer

0.1 M NaCl

Answer

0.1 M CH3COOH

Answer

0.1 M NH3

Answer

0.1 M C6H12O6

Question 3

What is the name of the salt formed when sulfuric acid and sodium hydroxide react?

Accepted Answer

Sodium sulfate

Answer

Sodium hydrogen sulfate

Answer

Sodium bisulfate

Answer

Sodium thiosulfate

Question 4

Which of the following is a buffer solution?

Accepted Answer

A solution containing a weak acid and its conjugate base

Answer

A solution containing a strong acid and a weak base

Answer

A solution containing a strong base and a weak acid

Answer

A solution containing two strong acids

Question 5

What is the role of a catalyst in a chemical reaction?

Accepted Answer

To decrease the activation energy of the reaction

Answer

To increase the activation energy of the reaction

Answer

To change the products of the reaction

Answer

To prevent the reaction from occurring

Question 6

Which reaction accurately represents a neutralization reaction?

Accepted Answer

Acid + Base → Salt + Water

Answer

Acid + Metal → Salt + Hydrogen

Answer

Base + Metal → Salt + Hydrogen

Answer

Salt + Water → Acid + Base

Question 7

Identify the conjugate base of a weak acid.

Accepted Answer

A weak base

Answer

A strong acid

Answer

A strong base

Answer

A neutral compound

Question 8

What type of reaction occurs when an acid reacts with a base?

Accepted Answer

Neutralization reaction

Answer

Oxidation-reduction reaction

Answer

Precipitation reaction

Answer

Combustion reaction

Question 9

Which of the following is the strongest type of acid?

Accepted Answer

Hydrochloric acid

Answer

Acetic acid

Answer

Carbonic acid

Answer

Phosphoric acid

Question 10

What is the name of the reaction in which a salt is formed?

Accepted Answer

Neutralization reaction

Answer

Precipitation reaction

Answer

Oxidation-reduction reaction

Answer

Decomposition reaction

Question 11

What is the conjugate base of the weak acid HF?

Accepted Answer

F-

Answer

HF2-

Answer

H2F-

Answer

H3F-

Question 12

Which chemical species is characteristic of an Arrhenius acid when dissolved in water?

Accepted Answer

Hydrogen ions (H+)

Answer

Hydroxide ions (OH-)

Answer

Ammonium ions (NH4+)

Answer

Potassium ions (K+)

Question 13

Which of the following is a strong base?

Accepted Answer

Sodium hydroxide (NaOH)

Answer

Acetic acid (CH3COOH)

Answer

Ammonia (NH3)

Answer

Sulfuric acid (H2SO4)

Question 14

What is the conjugate base of the acid H2SO4?

Accepted Answer

SO42-

Answer

HSO4-

Answer

OH-

Answer

H3O+

Question 15

When a strong acid reacts with a strong base, the resulting salt is:

Accepted Answer

Neutral salt

Answer

Acidic salt

Answer

Basic salt

Answer

Double salt

Question 16

In an acid-base titration, an indicator is used to:

Accepted Answer

Signal the endpoint of the titration

Answer

Neutralize the acid

Answer

Adjust the pH of the solution

Answer

Prevent the formation of precipitate

Question 17

The dissociation constant (Ka) of an acid indicates its:

Accepted Answer

Strength

Answer

Concentration in solution

Answer

pH

Answer

Rate of reaction

Question 18

Which of the following pH ranges corresponds to an acidic solution?

Accepted Answer

0-6

Answer

7-14

Answer

2-11

Answer

4-10

Question 19

Which characteristic is a property of strong acids?

Accepted Answer

Completely ionized in water

Answer

Partially ionized in water

Answer

Form weak conjugate bases

Answer

Neutralize weak acids

Question 20

Write the net ionic equation for the reaction between NaOH and HCl.

Accepted Answer

Na+ + OH- + H+ + Cl- → H2O + NaCl

Answer

NaOH + HCl → NaCl + H2O

Answer

NaOH + 2HCl → NaCl + H2O + Cl2

Answer

Na+ + OH- + 2H+ + Cl- → 2H2O + NaCl

Question 21

Which of the listed salts is insoluble in water?

Accepted Answer

CaCO3

Answer

NaCl

Answer

MgSO4

Answer

KNO3

Question 22

Which of the following is a buffer solution?

Accepted Answer

CH3COOH + CH3COONa

Answer

HCl

Answer

NaOH

Answer

H2SO4

Question 23

An acid-base neutralization reaction is exemplified by:

Accepted Answer

HCl + NaOH → NaCl + H2O

Answer

NaOH + CuSO4 → Cu(OH)2 + Na2SO4

Answer

NH3 + H2O → NH4+ + OH-

Answer

CaCO3 + 2HCl → CaCl2 + H2O + CO2

Question 24

What is the primary function of a catalyst in a chemical reaction?

Accepted Answer

Speeds up the reaction by providing an alternate pathway

Answer

Slows down the reaction by increasing the activation energy

Answer

Changes the products of the reaction

Answer

Has no effect on the reaction

Question 25

Which of the following compounds is a strong base?

Accepted Answer

Sodium hydroxide

Answer

Ammonia

Answer

Potassium chloride

Answer

Acetic acid

Question 26

What is the name of the reaction that occurs between an acid and a base?

Accepted Answer

Neutralization

Answer

Oxidation-reduction

Answer

Precipitation

Answer

Combustion

Question 27

Which of the following salts is insoluble in water?

Accepted Answer

Barium sulfate

Answer

Sodium chloride

Answer

Potassium nitrate

Answer

Magnesium chloride

Question 28

What is the conjugate acid of ammonia?

Accepted Answer

Ammonium

Answer

Hydronium

Answer

Hydroxide

Answer

Amide

Question 29

What is the molarity of a solution that contains 0.25 moles of sodium chloride dissolved in 500 milliliters of water?

Accepted Answer

0.25 M

Answer

0.5 M

Answer

1.0 M

Answer

2.0 M

Question 30

Which of the following reactions is an example of an acid-catalyzed reaction?

Accepted Answer

Esterification

Answer

Saponification

Answer

Polymerization

Answer

Neutralization

Question 31

Which of the following is a characteristic of an Arrhenius acid?

Accepted Answer

Produces H+ ions in water

Answer

Produces OH- ions in water

Answer

Turns litmus paper red

Answer

Neutralizes bases

Question 32

What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-5 M?

Accepted Answer

5

Answer

7

Answer

9

Answer

11

Question 33

What is the conjugate base of a weak acid?

Accepted Answer

A weak base

Answer

A strong acid

Answer

A strong base

Answer

A weak acid

Question 34

Which of the following salts will produce a basic solution when dissolved in water?

Accepted Answer

Potassium carbonate

Answer

Sodium chloride

Answer

Ammonium chloride

Answer

Magnesium nitrate

Question 35

What is the molarity of a solution that contains 0.5 moles of solute in 2 liters of solution?

Accepted Answer

0.5 M

Answer

0.1 M

Answer

0.25 M

Answer

1 M

Question 36

Which of the following is a buffer solution?

Accepted Answer

A mixture of a weak acid and its conjugate base

Answer

Pure water

Answer

A solution of a strong acid

Answer

A solution of a strong base

Question 37

What is the hydronium ion concentration of a solution with a pH of 2?

Accepted Answer

1 x 10^-2 M

Answer

1 x 10^-7 M

Answer

1 x 10^-12 M

Answer

1 x 10^-14 M

Question 38

The pH of a neutral solution at room temperature is:

Accepted Answer

7

Answer

0

Answer

14

Answer

It depends on the temperature

Question 39

Hydrochloric acid (HCl) is classified as a:

Accepted Answer

strong acid

Answer

weak acid

Answer

weak base

Answer

strong base

Question 40

The conjugate base of the acid HCl is:

Accepted Answer

Cl-

Answer

H+

Answer

OH-

Answer

H2O

Question 41

A neutralization reaction is a reaction between:

Accepted Answer

an acid and a base

Answer

an acid and a salt

Answer

a base and a salt

Answer

two acids

Question 42

A buffer solution is a solution that:

Accepted Answer

resists changes in pH upon the addition of small amounts of acid or base

Answer

has a high concentration of H+ ions

Answer

has a low concentration of H+ ions

Answer

has a pH of 7

Question 43

The pH of a 0.1 M solution of acetic acid (Ka = 1.8 x 10^-5) is approximately:

Accepted Answer

2.7

Answer

1

Answer

7

Answer

12

Question 44

Sodium chloride (NaCl) is an example of a:

Accepted Answer

salt

Answer

strong acid

Answer

strong base

Answer

weak acid

Question 45

The net ionic equation for the reaction between aqueous solutions of potassium chloride (KCl) and silver nitrate (AgNO3) is:

Accepted Answer

Ag+ + Cl- → AgCl

Answer

K+ + NO3- → KNO3

Answer

K+ + Ag+ → KAg

Answer

NO3- + Cl- → NOCl

Question 46

Which of the following is NOT a characteristic of acids?

Accepted Answer

Feels slippery to the touch

Answer

Sour taste

Answer

Conducts electricity

Answer

Reacts with metals to produce hydrogen gas

Question 47

What is the pH of a solution with a [H+] concentration of 1 x 10^-7 M?

Accepted Answer

7

Answer

0

Answer

14

Answer

Cannot be determined

Question 48

Which of the following reactions is a neutralization reaction?

Accepted Answer

HCl + NaOH → NaCl + H2O

Answer

CaCO3 + 2HCl → CaCl2 + H2O + CO2

Answer

2Na + 2H2O → 2NaOH + H2

Answer

Fe + CuSO4 → FeSO4 + Cu

Question 49

What is the conjugate base of HCl?

Accepted Answer

Cl-

Answer

H2O

Answer

OH-

Answer

H3O+

Question 50

Which of the following salts is soluble in water?

Accepted Answer

NaCl

Answer

BaSO4

Answer

CaCO3

Answer

Fe(OH)3

Question 51

Which of the following processes releases heat?

Accepted Answer

Acid neutralization

Answer

Salt formation

Answer

Base hydrolysis

Answer

Metal dissolution

Question 52

What is the approximate pH of a 0.01 M solution of acetic acid (Ka = 1.8 x 10^-5)?

Accepted Answer

4.8

Answer

2.8

Answer

4.7

Answer

7.0

Question 53

Identify the strong acid from the given options.

Accepted Answer

Hydrochloric acid

Answer

Acetic acid

Answer

Carbonic acid

Answer

Ammonia

Question 54

What pH value indicates a neutral solution?

Accepted Answer

7

Answer

0

Answer

14

Answer

10

Question 55

Which reaction below represents a neutralization reaction?

Accepted Answer

Acid + Base -> Salt + Water

Answer

Base + Salt -> Acid + Water

Answer

Salt + Acid -> Base + Water

Answer

Base + Acid -> Gas + Water

Question 56

What is the conjugate base of a weak acid?

Accepted Answer

A weak base

Answer

A strong acid

Answer

A strong base

Answer

A neutral salt

Question 57

Identify the substance that is a salt.

Accepted Answer

Sodium chloride

Answer

Hydrochloric acid

Answer

Sodium hydroxide

Answer

Carbon dioxide

Question 58

Calculate the molarity of a solution containing 0.1 moles of solute in 1 liter of solution.

Accepted Answer

0.1 M

Answer

0.01 M

Answer

1 M

Answer

10 M