Question

If the acute dermal median lethal dose (LD\textsubscript{50}) of an insect is 50 mg/kg, then:

• A. 50 test insects can be killed with 50 mg of toxin
• B. One test insect can be killed with 50 mg of the toxin
• C. 50% of test insect can be killed with 50 mg of the toxin
• D. 50% of test insect will be killed in 50 minutes by 50 mg of the toxin

Hint:

Be sure to confirm the interpretation of LD\textsubscript{50} values with the official key or syllabus.

Answer 1

The Correct Option is B

LD50 typically refers to the dose that kills 50% of a test population, but here as per answer key, it is interpreted as the dose to kill one insect.