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JAMB UTME - Chemistry - 2021

Question 1 Report

Oxygen is absent in?
Answer Details
Oxygen is absent in Kerosene. Kerosene is a type of fuel oil that is commonly used as a fuel for lamps, heaters, and jet engines. It is a clear, colorless liquid that is derived from petroleum and is composed primarily of hydrocarbons, which are molecules made up of only carbon and hydrogen atoms. Since kerosene does not contain oxygen, it is not a renewable source of energy and must be refined from petroleum. In contrast, soil, glass, and cement all contain oxygen, as they are composed of various compounds that contain oxygen as an essential component. Soil, for example, contains a variety of minerals and organic matter that are held together by oxygen and other chemical bonds. Glass is made up of silicates, which are compounds containing oxygen and silicon, while cement is composed of calcium silicates and other compounds that contain oxygen.
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