What are Aromatic Hydrocarbons?

There are much type of hydrocarbons and its there characteristic each of the hydrocarbons. An aromatic hydrocarbon is one type of hydrocarbons. Aromatic hydrocarbons are a class of chemical substances which are characterized by having molecular structures which are called benzene rings. Many aromatic hydrocarbons are toxic, and they are unfortunately among the most widespread of organic pollutants. A hydrocarbon is any chemical compound which contains only hydrogen and carbon. In fact, not all aromatic hydrocarbons smell; the scent was thought to be linked to the benzene ring, but it is actually caused by impurities but the name as stuck, as often happens in science even after new information on a topic has emerged, to minimize confusion. Each carbon atom has four electrons; two electrons link up with neighbouring carbon atoms, while one goes to a hydrogen atom. The fourth is what is known as a delocalized electron, meaning that it is not directly involved with a specific atom. Benzene rings are often drawn as hexagonal shapes with a circle in the middle to represent these delocalized electrons. Benzene happens to be a particularly toxic form of aromatic hydrocarbon. These aromatic hydrocarbons are created through incomplete combustion, which is why they are so widely distributed in the natural environment. An aromatic hydrocarbon may also be known in the abbreviated form of AH or as an arene.

Petroleum (Crude Oil)

Petroleum is mineral source that we must use in our daily. In every day, we must use petroleum resource in doing anything job. Crude oil like this blob of petroleum washes up on the beach at Coal Oil Point near Santa Barbara, California. It comes from natural seepage offshore. To know the aspect of crude oil is huge thicknesses of coarse sediment are laid down from the erosion of the rapidly uplifting Santa Ynez Mountains; at the same time, the waters of the channel are tremendously fertile, raining large amounts of dead organic matter onto the sediments. The sediments become rock, and over a few hundred thousand years, more or less, the organic matter within them is slowly cooked into petroleum. The same tectonic compression that pushes up the mountains crumples and tilts the seafloor rocks, and the crude oil finds openings in the coarse sandstone to trickle upward. If it reaches the sea floor, globs of it rise into the water and float ashore, fouling surfers and seals alike. If not, it may pool in oil-saturated zones where the rocks are folded into dome-shaped traps. Oil seeps occur on land, too, although there the product is usually asphalt.

MOHAMAD AMAR B JAIRANI
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