In the reaction: 2PbO + C → 2Pb + CO₂, which substance is oxidized? MCQ with Answer and Explanation

In the reaction: 2PbO + C → 2Pb + CO₂, which substance is oxidized?
A. PbO
B. CO₂
C. C
D. Pb
Answer: Option C
Solution (By JKExamLibrary)
Oxidation is the gain of oxygen or loss of electrons. Here, Carbon (C) gains oxygen to form Carbon dioxide (CO₂), so Carbon is oxidized. Lead oxide (PbO) loses oxygen to form Lead (Pb), so PbO is reduced. This is a classic redox reaction where both processes occur simultaneously.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More chemistry Questions

Question #1
The alloy bronze contains copper and:
A. Tin
B. Aluminium
C. Zinc
D. Lead

Correct Answer: Option A


Explanation:
Bronze is Cu + Sn. Brass is Cu + Zn. Solder is Pb + Sn. Duralumin is Al + Cu + Mg. Bronze was one of the earliest alloys used by humans.

This question belongs to: Science chemistry
Question #2
James Chadwick bombarded beryllium with alpha particles and discovered:
A. Positron
B. Neutron
C. Electron
D. Proton

Correct Answer: Option B


Explanation:
Chadwick (1932) produced highly penetrating neutral radiation by bombarding Be with α-particles, identified as neutrons. Reaction: ⁹Be + ⁴He → ¹²C + ¹n.

This question belongs to: Science chemistry
Question #3
The horizontal rows in the periodic table are called:
A. Periods
B. Groups
C. Families
D. Blocks

Correct Answer: Option A


Explanation:
Periods are horizontal rows (7 periods). Groups are vertical columns (18). Elements in same period have same number of electron shells.

This question belongs to: Science chemistry