---

Question 1:

What happens in a redox reaction?

A) Electrons are gained only
B) Electrons are lost only
C) Electrons are both gained and lost
D) Electrons remain unchanged

Show Answer

Explanation: The correct answer is C) Electrons are both gained and lost. In a redox (reduction-oxidation) reaction, electrons are transferred from one species to another. One species undergoes oxidation (loses electrons), while another species undergoes reduction (gains electrons).

---

Question 2:

What is reduced in a redox reaction?

A) The reactant that gains electrons
B) The reactant that loses electrons
C) The product that gains electrons
D) The product that loses electrons

Show Answer

Explanation: The correct answer is A) The reactant that gains electrons. In a redox reaction, reduction occurs when a reactant gains electrons. The species being reduced is referred to as the oxidizing agent.

---

Question 3:

What is oxidized in a redox reaction?

A) The reactant that gains electrons
B) The reactant that loses electrons
C) The product that gains electrons
D) The product that loses electrons

Show Answer

Explanation: The correct answer is B) The reactant that loses electrons. In a redox reaction, oxidation occurs when a reactant loses electrons. The species being oxidized is referred to as the reducing agent.

---

Question 4:

What is the oxidizing agent in a redox reaction?

A) The reactant that gains electrons
B) The reactant that loses electrons
C) The product that gains electrons
D) The product that loses electrons

Show Answer

Explanation: The correct answer is A) The reactant that gains electrons. The oxidizing agent is the species that accepts electrons during a redox reaction. It gets reduced while causing another species to undergo oxidation.

---

Question 5:

What is the reducing agentin a redox reaction?

A) The reactant that gains electrons
B) The reactant that loses electrons
C) The product that gains electrons
D) The product that loses electrons

Show Answer

Explanation: The correct answer is B) The reactant that loses electrons. The reducing agent is the species that donates electrons during a redox reaction. It gets oxidized while causing another species to undergo reduction.