What is the oxidation number of carbon in C₃O₂ (Carbon suboxide) ?

• (A) + 4/3
• (B) + 10/4
• (C) + 2
• (D) + 2/3

The oxidation number of carbon in C₃O₂, known as carbon suboxide, can be determined by analyzing the structure and bonding of the compound.

Calculating Oxidation States

In C₃O₂, there are three carbon atoms and two oxygen atoms. Oxygen typically has an oxidation state of -2. Since there are two oxygen atoms, the total contribution from oxygen is:

• 2 × (-2) = -4

Let the oxidation number of carbon be represented as x. Since there are three carbon atoms, the equation for the total oxidation state becomes:

• 3x + (-4) = 0

Simplifying the Equation

Rearranging the equation gives:

• 3x = +4
• x = +4/3

Final Answer

Thus, the oxidation number of carbon in C₃O₂ is +4/3. The correct option is (A) + 4/3.