4. Which statement about an oxidant and its corresponding reducing agent is corr

Question

4. Which statement about an oxidant and its corresponding reducing agent is correct? Example: In the reaction K+(aq) + e K(s) K+ is the oxidant and K(s) is its corresponding reducing agent.

D. Both B and C

5. Which statement about oxidation states (or numbers) is not correct?

D. Oxidation number, more than anything, gives you an insight into where the electron rich, electron deficient, and electron neutral atomic sites are within a molecule.

7. Zinc is used to make galvanized iron pipes. These pipes are protected from the rust reactions that would normally occur. Which statement best explains why zinc is used?

A. A strong oxidant will have a weak corresponding reducing agent. B. A strong oxidant will have a strong corresponding reducing agent. D. A strong reducing agent will have a strong corresponding oxidant.

D. Both B and C

Explanation / Answer

4) A strong oxidizing agent oxidizes others easily, that means it accepts the electrons from others easily. So a strong oxidant reduced itself easily. It indicates reduced state K(s) is more stable than K+ state. So K(s) is weak reducing agent as it is stable.

Answer is: A) A strong oxidant will have a weak corresponding reducing agent.

5) Answer is A) Oxidation state is used in order to attempt to assess where the electrons are in a molecule and assign them to individual atoms.

7) Answer is D) Zinc is a better reducing agent than iron. It also creates zinc oxide.

Zinc is better reducing agent than iron as Zn2+/Zn has lower standard reduction potential than Fe2+/Fe. So Zn itself oxidized to Zn2+ easier than iron and it will form zinc oxide. It reduces the rusting of iron.

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.