Question

Write the chemical formulae of four oxyacids of chlorine.

Answer 1

Hint: Chlorine is the second lightest halogen and is represented as Cl. It appears as a pale yellow-green gas. Moreover, its position as per the periodic tale is between fluorine and bromine. Some of its oxy acids are hypochlorous acid, perchloric acid, chloric acid and chlorous acid.

Complete step by step answer:
Basically the acids that contain oxygen, hydrogen plus another element are known as oxoacids. Now, chlorine is the second halogen in the periodic table. Its properties are similar to fluorine, bromine and iodine. It is a strong oxidizing agent and interacts with other elements and helps them to complete their octet.
Now, the four oxyacids of chlorine are listed below:
1.Hypochlorous acid (HOCl) - It is also known as hypochlorite or chlorine hydroxide. It was discovered by a French chemist Antoine Jerome Ballard in the year 1834. It contains monovalent chlorine that further functions as a reducing agent or an oxidizing agent. It reacts with hydrochloric acid and produces chlorine gas. The reaction is as shown:
 $HClO + HCl \to {H_2}O + C{l_2}$
2.Chlorous acid $(HCl{O_2})$ - It is a weak acid and can be obtained by reacting barium or lead chloride with dilute sulfuric acid. It consists of one chlorine atom, one hydrogen atom and two oxygen atoms. Moreover, it is a strong oxidizing agent and is widely used as a mouthwash for plaque reduction.
3.Chloric acid $(HCl{O_3})$ - It basically consists of one chlorine atom, one hydrogen atom and three oxygen atoms. It is a colorless liquid and a strong oxidizing agent. Moreover, when it comes in contact with combustible materials, it enhances the burning to ignite most. It is widely used as a reagent in chemical analysis and in making of various chemicals.
4.Per chloric acid $(HCl{O_4})$ -It is also known as hypercaloric acid. It is used as an oxidizer in the separation of sodium and potassium. It can be prepared by treating the solution of sodium perchlorate with hydrochloric acid. The reaction is as shown:
 $NaCl{O_4} + HCl \to NaCl + HCl{O_4}$

Note:
Chlorine has several uses like it is used in the production of paper and paper products, in the production of drugs, in the manufacture of dyes and plastics. It is also used in the treatment of drinking water to kill bacteria.