Crude petroleum pollutant usually seen on some Nigerian creeks and waterways can be dispersed or removed by
heating the affected parts in order to boil off the petroleum
mechanically stirring to dissolve the petroleum in water
pouring organic solvents to dissolve the petroleum
spraying the water with detergents
cooling to freeze out the petroleum
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The most common method for dispersing or removing crude petroleum pollutants from waterways is by using detergents. Detergents can break down the oil into smaller droplets, making it easier for it to disperse and eventually biodegrade. Therefore, the correct answer is:
D. spraying the water with detergents.
1)indicate which of the following statements is not true as we move from left to right along periodic table (a) Atomic number of element increases (b) atomic mass of the element increases (c) Electropositive character of element increases (d) number of electrons in the outermost orbit of element increases
2)which of the following contains two amphoteric oxides? (a) sodium oxides, zinc oxide, magnesium oxide (b) Aluminum oxide, calcium oxide, zinc oxide (c) potassium oxide, lithium oxide, carbon dioxide (d) silver oxide, lead oxide, sodium oxide.
yes the answer is correct because petroleum dissolves in non polar compounds like some organic solvents. And we know solvents dissolves solutes so there tue answer is correct
Greetings, The Myschool Team.
The correct answer is D(spraying the water with detergents) and not C(pouring organic solvents to dissolve the petroleum). Use of organic solvents does not remove the petroleum pollutant; rather, it further pollutes the environment by introducing more pollutant into the environment. In contrast, detergents serve to emulsify the oil and petroleum droplets, allowing for removal and reducing its spread. Thus, the correct answer is D(spraying the water with detergents) and not C(pouring organic solvents to dissolve the petroleum). Thank you.
The correct answer is D. spraying the water with detergents.Why Detergents are UsedWhen crude oil spills into waterways, it doesn't mix with water because it is non-polar and less dense. Detergents act as dispersants. Here is how they work:Emulsification: Detergents contain molecules with a "water-loving" (hydrophilic) head and an "oil-loving" (hydrophobic) tail. They break the oil slick into tiny droplets.Surface Area: By turning the oil into small droplets, the surface area increases, which allows natural bacteria in the water to break down (biodegrade) the oil much faster.Prevention: Dispersing the oil prevents it from clumping together and washing ashore, where it would cause more severe damage to mangroves and coastal wildlife.Why the Other Options are IncorrectOptionReason it is IneffectiveA. HeatingIt is impossible to "boil" an entire creek or ocean. Heating would also kill all aquatic life in the vicinity.B. StirringOil is insoluble in water. Stirring might temporarily mix them, but the oil will quickly float back to the top once stirring stops.C. Organic SolventsMany organic solvents are themselves toxic pollutants. Adding them to a waterway would likely cause more environmental damage than the oil itself.E. CoolingIt is physically impossible to freeze a natural waterway to "capture" oil, and it would destroy the ecosystem.
