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Exploring Acid-Base Reactions

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the pH range of acids?

a)

-1 to 0

b)

7 to 14

c)

6.9 to 10

d)

0 to 6.9

2.

Which of the following is a strong acid?

a)

Sulfuric acid (H2SO4)

b)

Hydrochloric acid (HCl)

c)

Acetic acid (CH3COOH)

d)

Nitric acid (HNO3)

3.

What is the conjugate base of HCl?

a)

Cl2

b)

HClO

c)

Cl-

d)

H2Cl

4.

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

a)

Synthesis reaction

b)

Combustion reaction

c)

Decomposition reaction

d)

Neutralization reaction

5.

Which of the following is a characteristic of bases?

a)

They can donate electrons (e-).

b)

They can accept protons (H+).

c)

They turn litmus paper red.

d)

They have a sour taste.

6.

What is the pH of a neutral solution at 25°C?

a)

6.5

b)

7.5

c)

8.0

d)

7.0

7.

Which indicator is commonly used to test for acids?

a)

Litmus paper

b)

Phenolphthalein

c)

pH meter

d)

Bromothymol blue

8.

What is the formula for sulfuric acid?

a)

H2SO4

b)

H2O4S

c)

H2SO3

d)

H2S2O4

9.

What happens to the pH when an acid is added to water?

a)

The pH remains the same.

b)

The pH increases.

c)

The pH fluctuates wildly.

d)

The pH decreases.

10.

Which of the following is a weak acid?

a)

Acetic acid

b)

Sulfuric acid

c)

Nitric acid

d)

Phosphoric acid

11.

What is the role of a buffer solution?

a)

The role of a buffer solution is to maintain a stable pH in a solution.

b)

The role of a buffer solution is to increase the temperature of a solution.

c)

The role of a buffer solution is to enhance the solubility of solids in a solution.

d)

The role of a buffer solution is to change the color of a solution.

12.

What is the conjugate acid of NH3?

a)

NH2-

b)

NH4+

c)

NH3-

d)

N2H4

13.

Which gas is produced when an acid reacts with a carbonate?

a)

Hydrogen (H2)

b)

Nitrogen (N2)

c)

Oxygen (O2)

d)

Carbon dioxide (CO2)

14.

What is the difference between a strong acid and a weak acid?

a)

Strong acids have a higher pH than weak acids.

b)

Strong acids fully dissociate in solution; weak acids partially dissociate.

c)

Weak acids completely ionize in solution.

d)

Strong acids are less corrosive than weak acids.

15.

What is the formula for acetic acid?

a)

C2H4O2

b)

C2H6O2

c)

C2H2O2

d)

C3H6O3