Bases are chemicals with a pH greater than 7.
Bases that are soluble in water are called alkalis.
They neutralise acids to produce salt.
Potassium hydroxide;Sodium carbonate;Sodium hydroxide are alkalis
The uses for alkalis are:
Making chemicals to bind natural dyes to cloth
As an electrolyte in long life batteries
Neutralising acid soils
Converts fat and oil into soap
Chlorine is a greenish-yellowish poisonous gas in group 7 of the periodic table. It is one of the halogens.
Hydrochloric gas is a common name for hydrogen chloride. It can be converted to chlorine by an oxidation reaction that uses a catalyst.
Uses of chlorine:
Making bleach- which is a strong disinfectant. It contains sodium hypchlorite, which denatures proteins in microorganisms
Treating drinking water- making a major contribution to public health
Killing microorganisms- in swimming pools
The disadvantages to…