Question

Which is more acutely toxic? (                   )

	1.	LD50 = 5 mg/kg BW
	2.	LD50 = 1000 mg/kg BW

Answer 1

LD50 means " Lethal Dose" which is represent as if it is given at all once, 50% of the test group animals will be died.

Now, LD50 = 5 mg/kg BW means 5 mg of that chemicals if is given at all once per 1 kg of body weight of the test group animals, 50% of the animals will cause death.

LD50 = 1000 mg/kg BW means 1000 mg of that chemicals if is given at all once per 1 kg of body weight of the test group animals, 50% of the animals will cause death.

More accutely toxic is LD50= 5 mg/kg BW