<prompt> Antidote for cyanide poison is: March 2012Sodium bicarbonateSodium chlorideSodium thiosulphateAll of the following  <response>: Ans: C i.e. Sodium thiosulphate Cyanide is directly conveed to thiocyanate non-toxic; excreted in the urine by the complexing of cyanide with thiosulphate under the influence of the enzyme rhodanase. 