Oxidation Quiz

What is the definition of oxidation?

• Transfer of protons by a substance

• No change in the number of electrons

• Gain of electrons by a substance

• Loss of electrons by a substance

Give an example of an oxidation .

• Boiling of water

• Rusting of iron

• Mixing of salt and sugar

• Burning of magnesium

How is oxidation observed in everyday life?

• Sublimation, deposition, and melting

• Rusting of iron, browning of apples, and combustion

• Photosynthesis, respiration, and fermentation

• Evaporation, condensation, and precipitation

What are oxidation and reduction reactions?

• Oxidation and reduction reactions involve the transfer of electrons.

• Oxidation and reduction reactions involve the transfer of molecules.

• Oxidation and reduction reactions involve the transfer of neutrons.

• Oxidation and reduction reactions involve the transfer of protons.

What is the historical definition of oxidation?

• Oxidation is a physical process in which a substance changes color.

• Oxidation is a chemical reaction in which a substance gains electrons and decreases its oxidation state.

• Oxidation is a physical process in which a substance combines with oxygen to become a different substace

• Oxidation is a chemical reaction in which a substance loses electrons and increases its oxidation state.

True or False: Oxidation always involves the addition of oxygen.

• Oxidation involves the addition of hydrogen

• Oxidation involves the removal of oxygen

• False

• True

Which of the following is an example of oxidation in everyday life?

• Melting of ice

• Rusting of iron

• Boiling of water

• Burning of paper

What is the opposite process of oxidation?

• combustion

• evaporation

• condensation

• reduction

True or False: Oxidation and reduction always occur together.

• True

• Only in certain cases

• Sometimes

• False

Who first defined oxidation in the late 18th century?

• Isaac Newton

• Joseph Priestley

• Robert Boyle

• Antoine Lavoisier