BSCpE Final Exam

In a redox reaction, oxidation is always accompanied by:

• Reduction

• Acidification

• Neutralization

• Dissociation

The reducing agent in a redox reaction:

• Is oxidized

• Is reduced

• Gains electrons

• Is unchanged

The oxidation number of chlorine in Cl2 is:

• -1

• -2

• +1

• 0

Which of the following is an oxidation process?

• Gaining electrons

• Losing protons

• Gaining protons

• Losing electrons

In a redox reaction, the substance that donates electrons is called the:

• Oxidizing agent

• Reducing agent

• Catalyst

• Electron donor

Which of the following is an example of a redox reaction?

• Acid-base neutralization

• Precipitation reaction

• Combustion of methane

• Dissolving sugar in water

The oxidation state of sulfur in SO4 2−:

• +2

• +4

• +6

• -2

Which species is reduced in the reaction: CuO+H2→Cu+H2O?

• H2O

• H2

• Cu

• CuO

In the reaction Zn+CuSO4→ZnSO4+Cu, the substance that is reduced is:

• Zinc

• Copper

• Sulfate

• Water

What is the oxidation number of oxygen in H2O2?

• -1

• -2

• 0

• +2