Elements, Compounds, Symbols And Formulae — CHEMISTRY STD 6 — Question

Sodium is a metal that is stored in kerosene oil as it reacts very fast with air and water. Chlorine is a reactive greenish-yellow gas which is poisonous. When these two elements combine chemically they form common salt sodium chloride which is a non-poisonous colourless solid substance that we use in our food to add taste and to obtain some nutrition.