Which Compound Has Carbon with a Negative Oxidation Number

question 209

Multiple Choice

Which compound has carbon with a negative oxidation number?

• A)CO₂
• B)CaC₂
• C)HCN
• D)Li₂CO₃

---

Definitions:

Secretary of Defense

The head of the Department of Defense, responsible for overseeing all agencies and functions of the government directly related to national security and the United States armed forces.

Hillary Clinton

An American politician, diplomat, lawyer, writer, and public speaker who served as the 67th United States Secretary of State, a U.S. senator from New York, and a First Lady of the United States.

Robert Gates

A former U.S. Secretary of Defense who served under Presidents George W. Bush and Barack Obama, known for his efforts in directing American foreign policy and military operations.