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The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

Salt is also used in fermenting processes for foods like sauerkraut and pickles . Sodium chloride also has many other uses beyond seasoning and preserving foods. Hospitals use an intravenous sodium chloride solution to supply water and salt to patients to alleviate dehydration.

Acid which was known as Aquafortis / Spirit of Nitre – Nitric acid.
The acid which was known as ‘Oil of Vitriol’ – Sulphuric acid.
The substance which helps to prevent infection caused by bacteria – Benzoic acid.

Sodium carbonate is used in the manufacture of glass, paper, rayon, soaps, and detergents. It is also used as a water softener, since carbonate can precipitate the calcium and magnesium ions present in “hard” water.

Concrete mixture of cement, sand , gravel or small pieces of stone and water is used for construction of floors.

Pyrex glass is also known as Borosilicate glass.

Quartz glass used for making chemical apparatus and optical instruments.

Hydrogenation – Process of treating or combining chemically unsaturated compounds with hydrogen.
Pyrolysis – Chemical decomposition by the action of heat.
Halogenation – Chemical reaction that involves the addition of one or more halogen.

Plaster of Paris – Calcium Sulphate
Egg Shell,Chalk – Calcium Carbonate .
Yellow cake – Uranium Dioxide.

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