Question

The concentration of pesticide require to
destroy 50% of pest is called
(a)
LD-50
(b)
LC-50
(c)
LB-50
(d)
LE-50​

Answer 1

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LD (lethal dose) 50 is a standard measurement of acute toxicity. It is stated in milligrams (mg) of pesticide per kilogram (kg) of body weight. LD 50 represents the individual dose required to kill 50% of a population of test animals (e.g., rats, fish, mice, cockroaches).

• So, the correct answer is 'LD 50'

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Answer 2

Answer:

The LD50 is defined as the lethal dose at which 50% of the population if killed in a given period of time, while an LC50 is the lethal concentration required to kill 50% of the population.

The answer will be (b) LC-50

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