Acids, Bases, and Salts: Interactive Learning Quizzes for Mechanical Engineering

Question 1

What is the pH of a 0.1 M solution of NaOH?

Accepted Answer

13

Answer

1

Answer

7

Answer

14

Question 2

What is the conjugate base of H2SO4?

Accepted Answer

SO42-

Answer

HSO3-

Answer

H2O

Answer

OH-

Question 3

Which of the following is considered a weak acid?

Accepted Answer

Acetic acid

Answer

Hydrochloric acid

Answer

Nitric acid

Answer

Sulfuric acid

Question 4

What is the product formed when sodium hydroxide reacts with hydrochloric acid?

Accepted Answer

Sodium chloride

Answer

Sodium hydroxide

Answer

Water

Answer

Hydrogen chloride

Question 5

Which of the following is classified as a salt?

Accepted Answer

Sodium chloride

Answer

Hydrochloric acid

Answer

Sodium hydroxide

Answer

Water

Question 6

Which of the following reactions is a neutralization reaction?

Accepted Answer

Acid + Base -> Salt + Water

Answer

Acid + Metal -> Salt + Hydrogen gas

Answer

Base + Metal -> Salt + Hydrogen gas

Answer

Salt + Water -> Acid + Base

Question 7

What is the conjugate base of HCl?

Accepted Answer

Cl-

Answer

H+

Answer

OH-

Answer

H2O

Question 8

Which characteristic is NOT a defining property of acids?

Accepted Answer

Inability to conduct electricity

Answer

Sour taste

Answer

Ability to donate H+ ions

Question 9

Which of the following substances is **completely** ionized in aqueous solution, making it a strong acid?

Accepted Answer

Hydrochloric acid

Answer

Acetic acid

Answer

Sodium hydroxide

Answer

Ammonia

Question 10

Which of the following reactions is a neutralization reaction, where an acid and a base react to form a salt and water?

Accepted Answer

Acid + Base -> Salt + Water

Answer

Acid + Metal -> Salt + Hydrogen

Answer

Base + Metal -> Oxide + Hydrogen

Answer

Salt + Water -> Acid + Base

Question 11

What is the conjugate base of a weak acid?

Accepted Answer

A weak base

Answer

A strong acid

Answer

A strong base

Answer

A salt

Question 12

Which of the following salts is soluble in water according to the solubility guidelines?

Accepted Answer

Sodium chloride

Answer

Barium sulfate

Answer

Calcium carbonate

Answer

Silver chloride

Question 13

What is the name of the reaction in which a salt reacts with a strong acid or base to form a weak acid or base?

Accepted Answer

Hydrolysis reaction

Answer

Acid-base reaction

Answer

Neutralization reaction

Answer

Precipitation reaction

Question 14

Which of the following is a strong acid?

Accepted Answer

Hydrochloric acid

Answer

Acetic acid

Answer

Carbonic acid

Answer

Ammonia

Question 15

What is the pH of a neutral solution?

Accepted Answer

7

Answer

0

Answer

14

Answer

10

Question 16

Which of the following is a salt?

Accepted Answer

Sodium chloride

Answer

Hydrochloric acid

Answer

Sodium hydroxide

Answer

Water

Question 17

Which type of reaction occurs when an acid and a base react?

Accepted Answer

Neutralization reaction

Answer

Precipitation reaction

Answer

Oxidation-reduction reaction

Answer

Combustion reaction

Question 18

Which of the following is a weak base?

Accepted Answer

Ammonia

Answer

Sodium hydroxide

Answer

Potassium hydroxide

Answer

Calcium hydroxide

Question 19

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 compound

Question 20

What is the molarity of a solution that contains 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

Question 21

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 strong base

Answer

A solution containing only water

Answer

A solution containing a salt

Question 22

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

Accepted Answer

pH = 5

Answer

pH = -5

Answer

pH = 9

Answer

pH = -9

Question 23

What is the conjugate base of HCl?

Accepted Answer

Cl-

Answer

H2O

Answer

OH-

Answer

H+

Question 24

Which of the following salts is insoluble in water?

Accepted Answer

BaSO4

Answer

NaCl

Answer

KCl

Answer

CaCl2

Question 25

According to the Bronsted-Lowry theory, which of the following is the strongest acid?

Accepted Answer

Hydrochloric acid (HCl)

Answer

Water (H2O)

Answer

Ammonia (NH3)

Answer

Acetic acid (CH3COOH)

Question 26

What is the conjugate base of H2SO3?

Accepted Answer

HSO3-

Answer

SO3-

Answer

H3SO4+

Answer

SO42-

Question 27

Which of the following is a weak electrolyte?

Accepted Answer

Acetic acid (CH3COOH)

Answer

Hydrochloric acid (HCl)

Answer

Sodium hydroxide (NaOH)

Answer

Potassium sulfate (K2SO4)