Used in the production of beryllium and as a catalyst.
A yellow-green toxic gas with a strong odour, one of the halogens.
An exercise about the polarity of molecules.
A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.
A colourless gas with a pungent odour, its solution in water is called hydrochloric acid.
The water supply system provides clean and safe drinking water for the consumers.
Halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine, chlorine, bromine, iodine, and astatine.
Potassium permanganate is used as a disinfectant.