In which of the following poisons, injuries are not present at the poal of entry but with considerable systemic involvement during autopsy?

Poisons producing systemic lesions without injury at the poal of entry: Acute haemolytic poisons (Arsine, Nitrobenzene) Poisons producing leisons at poal of entry without systemic injuries: corrosives, chlorine, sulphur dioxide. Poisons producing both local and systemic injuries heavy metals