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What is the chemical symbol for chlorine?
A. Ch
B. Cl
C. Cr
D. Cn
Correct Answer Is Option = Cl
Notes / Explanation
The chemical symbol for chlorine is written as Cl, and the understanding of chemical symbols is an important part of the study of chemistry. In chemistry, every element, which is a basic substance that cannot be broken down into simpler substances by ordinary chemical means, is represented by a short symbol consisting of one or two letters, which provides a convenient and internationally understood way of referring to the element. These symbols are usually derived from the name of the element, and in the case of chlorine the symbol Cl is taken from the first two letters of its name, with the first letter written as a capital and the second as a small letter, following the standard way of writing such symbols. Chlorine is a chemical element that, in its pure form, is a gas with a strong and distinctive smell and a greenish-yellow colour, and it is a very reactive substance that readily combines with other elements to form compounds. Although chlorine in its pure form is poisonous and must be handled with great care, it is also extremely useful, and its compounds are of great importance in everyday life. One of the most familiar of these compounds is common salt, which is formed when chlorine combines with another element and which is essential in the diet and in the preservation of food. Chlorine is also widely used because of its powerful ability to kill germs, and for this reason it is used to disinfect drinking water and to treat the water in swimming pools, helping to protect people from disease by destroying harmful organisms in the water. It is also used in the manufacture of a great many products, including various plastics, cleaning agents and medicines. The study of the elements and their symbols, and the way the elements combine to form compounds, is one of the foundations of chemistry, and the chemical symbols allow scientists to write the formulas of compounds and the equations of chemical reactions in a clear and compact way. For PPSC and other competitive examinations, the key points to remember are that the chemical symbol for chlorine is Cl, that this symbol is taken from the first two letters of its name, that chlorine is a reactive greenish-yellow gas that forms important compounds such as common salt, and that it is widely used to disinfect water and in the manufacture of many products.
