Paris green is a ?
**Core Concept**
Paris green is a toxic pigment that has been historically used in various applications. It is a compound of arsenic and copper, and its toxicity is attributed to the arsenic component.
**Why the Correct Answer is Right**
Paris green is a compound of arsenic and copper, specifically copper(II) acetoarsenite. It is a potent neurotoxin and poison that can cause severe symptoms upon ingestion or exposure. The arsenic component of Paris green is responsible for its toxicity, which can lead to symptoms such as nausea, vomiting, diarrhea, and abdominal pain.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Paris green is not a derivative of mercury. Mercury is a different metal that has its own set of compounds and applications.
**Option B:** This option is incorrect because Paris green is not a compound of lead. Lead is a toxic metal, but it is not associated with Paris green.
**Clinical Pearl / High-Yield Fact**
Paris green is a classic example of a toxic substance that has been used in history for various purposes, including as a pesticide and a pigment. Its toxicity is well-documented, and it should be handled with caution.
**Correct Answer: C. A compound of arsenic and copper.**