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CA BRANCH 3 Questions and Correct Verified Answers
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Ld 50 (lethal dose) Axwrtlethal dose (in mg/kg) required to kill 50% of a large population of test animals ld50= 0-50 mg/kgzz Lc 50 (lethal concentrate) Axwrtis the lethal concentration in air or water (in mg/ kg) required to kill 50% of the test animalszz Sympyoms for ld50 Axwrt1) acute o...

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  • November 15, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • ca branch 3 questions and correct verified answer

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Top Mark Questions and Correct Verified Answers



CA BRANCH 3 Questions and Correct
Verified Answers
Ld 50 (lethal dose)


Axwrtlethal dose (in mg/kg) required to kill 50% of a large population of test animals

ld50= 0-50 mg/kgzz




Lc 50 (lethal concentrate)


Axwrtis the lethal concentration in air or water (in mg/ kg) required to kill 50% of the

test animalszz




Sympyoms for ld50


Axwrt1) acute oral: single dose ingested by mouth


2) acute dermal: single dose applied to skin


3) inhalation : exposure through breathingzz




Acute toxicity


Axwrtrapid response to a single exposure or does of a chemical, often within mins or

hourszz




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, Top Mark Questions and Correct Verified Answers

Chronic toxicity


Axwrtrepeated exposures over time at sub-lethal dose of chemicalszz




Danger


Axwrtcategory i, highly toxic, ld50= 0-50 mg/kg (a taste to a teaspoon can kill youzz




Warning


Axwrtcategory ii, moderately toxic, ld50= 500-5000 mg/kg (an ounce to more than a

pint can kill you)zz




Caution


Axwrtcategory iii, slightly toxic, ld50= 500- 5000 mg/kg (an ounce to more than a pint

can kill you)zz




Sc


Axwrtsuspension concentratezz




Net contents


Axwrttells how much formulation is in the containerzz



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