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
False about Hydrocyanic acid. 
Select and explain. 
A. Also called as muriatic acid, B. Sodium nitrite and amyl nitrite are used in treatment, C. Inhibits cytochrome oxidase, D. Delayed neurological sequel can develop in form of Parkinson's disease
A: Also called as muriatic acid
Answer: A: Also called as muriatic acid 
Explanation: Hydrocyanic acid is not muriatic acid. Oil of vitriol - Sulphuric acid Muriatic acid - Hydrochloric acid Aqua fois - Nitric acid Carbolic acid - Phenol Salt of sorrel - oxalic acid