Chloroform

Chloroform is also known as Trichloro methane and it has a chemical formula of CHCl3. It will burn when mixed with highly flammable substances although it does not undergo combustion in air. It causes environmental pollution but it is used as a solvent and also as a reagent. It is widely used in the air conditioning industry today.

Benzene

Benzene is a organic chemical compound which is also known as Benzol. It is a carcinogenic compound and is denoted by C6H6. It is colorless and highly flammable liquid. The melting point of Benzene is also very high. Its use in the gasoline is very limited as it is carcinogenic but it has wide spread applications in the production of Synthetic rubber, dyes and also plastics.

Chlorine

Chlorine is a chemical element which is denoted by the symbol Cl. The atomic number of Chlorine is 17. It is a halogen and it has a place in the periodic table in group 17. The chlorine compounds are used in swimming pools to keep them clean and also in sanitary as well. In the upper atmosphere chlorine containing molecules have been implicated in the destruction of ozone layer.

Sulphuric acid

One of the most powerful acids is the sulphuric acid which is known as H2SO4. It is also called as the oil of vitriol. It was found by the 8 th century Muslim alchemist. It has many applications and is used primarily in ore processing, fertilizer manufacturing and also oil refining. It is also used in wastewater processing and also in chemical synthesis.

DDT

DDT stands for Dichloro Diphenyl Trichloro ethane. It is one of the best known synthetic pesticides. Its chemical effects were unknown until the world war2 where it was used for both military and civilian purposes. It was used to control the spread of mosquitoes spreading malaria and also lice transmitting typhus. Today it has widespread applications.