Final answer:
The petroleum-related species often found in association with crude oil reservoirs and consists of a mixture of hydrocarbons and non-hydrocarbon gases is associated gas. Crude oil is a complex mixture of several thousand organic compounds, including hydrocarbons such as alkanes, cycloalkanes, alkenes, and aromatic hydrocarbons. Natural gas is frequently found in reservoirs along with crude oil.
Step-by-step explanation:
The petroleum-related species often found in association with crude oil reservoirs and consists of a mixture of hydrocarbons and non-hydrocarbon gases is associated gas (option a).
Crude oil is a complex mixture of several thousand organic compounds, including hydrocarbons such as alkanes, cycloalkanes, alkenes, and aromatic hydrocarbons. Along with crude oil, natural gas is frequently found in reservoirs. Natural gas is primarily composed of methane and ethane, which are the main sources of alkanes.
During the process of refining crude oil, its constituents are separated by chain length to produce different fractions such as gasoline, kerosene, diesel, heating oil, lubricants, and tar. The differences in the boiling points allow for the segregation of crude oil into different fractions.