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Multiple Choice
Which of the following compounds is most likely to be found in fossilized organic matter?
A
Methane (CH4)
B
Carbon dioxide (CO2)
C
Water (H2O)
D
Kerogen
Verified step by step guidance
1
Understand the context of fossilized organic matter: Fossilized organic matter refers to the remains of ancient organisms that have been preserved in the Earth's crust over millions of years. These remains are primarily composed of organic compounds.
Identify the nature of kerogen: Kerogen is a complex mixture of organic compounds that is insoluble in normal organic solvents. It is formed from the decomposition of biological material under high pressure and temperature over geological time scales.
Compare the given compounds: Methane (CH₄), carbon dioxide (CO₂), and water (H₂O) are simple molecules. Methane is a hydrocarbon, carbon dioxide is an inorganic compound, and water is a polar molecule. None of these are complex organic mixtures like kerogen.
Recognize the role of kerogen in fossil fuels: Kerogen is a precursor to fossil fuels such as oil and natural gas. It undergoes further transformation under heat and pressure to form these fuels, making it a key component of fossilized organic matter.
Conclude why kerogen is the most likely compound: Given its complex organic nature and role in the formation of fossil fuels, kerogen is the compound most likely to be found in fossilized organic matter compared to the simpler molecules listed.