Question

Which is the most dangerous poison which kills the man within a second​

Answer 1

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$\blue \bigstar$Botulinum toxin :- Scientists differ about the relative toxicities of substances, but they seem to agree that botulinum toxin, produced by anaerobic bacteria, is the most toxic substance known.

Answer 2

Answer:

Botulinum toxin

Scientists differ about the relative toxicities of substances, but they seem to agree that botulinum toxin, produced by anaerobic bacteria, is the most toxic substance known. Its LD50 is tiny – at most 1 nanogram per kilogram can kill a human. Extrapolating from its effect on mice, an intravenous dose of just 10-7g would be fatal to a 70kg person.

It was first identified as a cause of food poisoning due to incorrectly prepared sausage (Latin, botulus) in late-18th century Germany. There are several botulinum toxins, with type A being the most potent. These are polypeptides, consisting of over 1,000 amino acid molecules joined together. They cause muscle paralysis by preventing the release of the signalling molecule (neurotransmitter) acetylcholine.

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