Which is the Most Toxic Form of Mercury

Question

Which is the most toxic form of mercury?
A) CH₃Hg⁺
B) Hg⁰
C) Hg²⁺
D) Hg⁴⁺

Accepted Answer

CH₃Hg⁺, also known as methylmercury, is the most toxic form of mercury. It can easily cross the blood-brain barrier and accumulate in the brain and nervous system, leading to severe neurological damage. Hg⁰, Hg²⁺, and Hg⁴⁺ are less toxic forms of mercury.