(a)
Interpretation:
Molecular structures of the given organophosphorus insecticides should be determined.
Concept introduction:
Organophosphorus compounds are usually esters, amides or thiol derivatives of phosphonic acid and form a large family of chemical agents with biological properties that have important, and sometimes unique, applications for the benefit of mankind. Organophosphorus insecticides are one such a big family in organophosphorus group.
(b)
Interpretation:
The suitable insecticide which can be used in our garden should be determined from the given organophosphate insecticide and the correct reason for choosing that insecticide should be given.
Concept introduction:
Organophosphorus compounds are usually esters, amides or thiol derivatives of phosphonic acid and form a large family of chemical agents with biological properties that have important, and sometimes unique, applications for the benefit of mankind. Organophosphorus insecticides are one such a big family in organophosphorus group.
LD50 represents the individual dose required to kill 50 percent of a population of test animals and it is a n index determination of medicine and poison’s virulence.
Lower the LD50 dose, the more toxic the pesticide.
(c)
Interpretation:
The insecticide which is most dangerous for mammals to ingest should be determined from the given organophosphate insecticides. And the correct reason for choosing that insecticide should be given.
Concept introduction:
Organophosphorus compounds are usually esters, amides or thiol derivatives of phosphonic acid and form a large family of chemical agents with biological properties that have important, and sometimes unique, applications for the benefit of mankind. Organophosphorus insecticides are one such a big family in organophosphorus group.
LD50 represents the individual dose required to kill 50 percent of a population of test animals and it is a n index determination of medicine and poison’s virulence.
Lower the LD50 dose, the more toxic the pesticide.
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Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
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