If a chemical has a very low LD50 value, which statement is true?

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Multiple Choice

If a chemical has a very low LD50 value, which statement is true?

Explanation:
LD50 is the dose that kills 50% of a test population. A very low LD50 means only a small amount is enough to be fatal, so the chemical is highly toxic in acute exposure. If the LD50 were high, it would indicate lower toxicity, and statements about needing a very high dose to kill or having no acute toxicity would contradict a low LD50. So the best interpretation is that the chemical is highly toxic.

LD50 is the dose that kills 50% of a test population. A very low LD50 means only a small amount is enough to be fatal, so the chemical is highly toxic in acute exposure. If the LD50 were high, it would indicate lower toxicity, and statements about needing a very high dose to kill or having no acute toxicity would contradict a low LD50. So the best interpretation is that the chemical is highly toxic.

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