Question 1

According to the Arrhenius definition, which of the following best describes an acid when dissolved in water?

Accepted Answer

A substance that increases the concentration of $\mathrm{H^+}$ ions

Question 2

Which of the following compounds, when dissolved in water, will produce $\mathrm{OH^-}$ ions according to the Arrhenius definition?

Accepted Answer

$\mathrm{NaOH}$

Question 3

What are the ions formed when $\mathrm{Sr(OH)_2}$ dissolves in water?

Accepted Answer

$\mathrm{Sr^{2+}}$ and $2\ \mathrm{OH^-}$

Question 4

Which of the following best explains why the Arrhenius definition of acids and bases is limited?

Accepted Answer

It only applies to reactions in aqueous solutions

Question 5

When $\mathrm{H_2SO_4}$ dissolves in water, which ions are produced?

Accepted Answer

$2\ \mathrm{H^+}$ and $\mathrm{SO_4^{2-}}$

Question 6

Which of the following is a correct dissociation equation for $\mathrm{HBO_3}$ in water?

Accepted Answer

$\mathrm{HBO_3} \rightarrow 3\ \mathrm{H^+} + \mathrm{BO_3^{3-}}$

Question 7

A student dissolves $\mathrm{NaOH}$ in water. Which statement best describes the resulting solution?

Accepted Answer

It contains $\mathrm{Na^+}$ and $\mathrm{OH^-}$ ions

Question 8

Which of the following best describes the fundamental ions involved in the Arrhenius concept of acids and bases?

Accepted Answer

$\mathrm{H^+}$ and $\mathrm{OH^-}$

Question 9

Which of the following is a real-world example of an Arrhenius acid used in industry?

Accepted Answer

Sulfuric acid ($\mathrm{H_2SO_4}$) used in car batteries

Question 10

A solution contains $\mathrm{OH^-}$ ions in high concentration. According to Arrhenius, this solution is best classified as:

Accepted Answer

A base

Question 11

Which of the following equations correctly represents the dissociation of hydrochloric acid ($\mathrm{HCl}$) in water?

Accepted Answer

$\mathrm{HCl} \rightarrow \mathrm{H^+} + \mathrm{Cl^-}$

Question 12

Which of the following statements is true regarding the dissociation of $\mathrm{H_2SO_4}$ in water?

Accepted Answer

It produces two $\mathrm{H^+}$ ions and one $\mathrm{SO_4^{2-}}$ ion per molecule

Question 13

A patient accidentally ingests a strong base. According to the Arrhenius definition, what ion is most likely to be found in excess in their stomach?

Accepted Answer

$\mathrm{OH^-}$

Question 14

Which of the following best describes the process that occurs when $\mathrm{NaOH}$ is added to water?

Accepted Answer

$\mathrm{NaOH}$ dissociates to form $\mathrm{Na^+}$ and $\mathrm{OH^-}$ ions

Question 15

Which of the following is NOT a limitation of the Arrhenius definition of acids and bases?

Accepted Answer

It explains acid-base behavior in all solvents

Arrhenius Acids and Bases: Definitions and Dissociation in Water

Study Guide - Practice Questions