Redox Reactions Quiz

What is a redox reaction primarily involved with?

• Transfer of protons

• Transfer of neutrons

• Transfer of electrons

• Transfer of energy only

Tags

NGSS.HS-PS1-2

What happens to the oxidation number of an element in the oxidized half of a redox reaction?

• It decreases

• It increases

• It remains the same

• It becomes zero

According to the mnemonic OIL RIG, what does "OIL" stand for?

• Oxygen Is Lost

• Oxidation Is Loss

• Oxygen Ionizes Lightly

• Oxidation Increases Gradually

What is the role of the oxidizing agent in a redox reaction?

• It donates electrons to other species

• It accepts electrons from other species

• It neither donates nor accepts electrons

• It stabilizes the reaction without electron transfer

What is a half reaction in the context of a redox reaction?

What is the oxidation number of hydrogen in NaH?

• +1

• 0

• -1

• +2

What is the oxidation number of oxygen in peroxides such as OF2?

• -1

• -2

• 0

• +2

What is the oxidation number of a Group IIA element in a compound?

• +1

• +2

• -1

• 0

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If the sum of the oxidation numbers in a polyatomic ion equals the charge of the ion, what is the sum of the oxidation numbers for SO4^2-?

• 0

• +2

• -1

• -2

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

• transfer