This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 1, Subject name: Forensic Medicine
Which is not a chemical antidote 
Select and explain. 
A. Lugol's iodine, B. Tannic acid, C. B.A.L, D. Weak vegetable acids
C: B.A.L
Answer: C: B.A.L 
Explanation: Chemical antidotes: - Lugol's iodine - Tannic acid - Weak vegetable acids - Weak non carbonate alkalis - Potassium permanganate B.A.L - chelating agent