Prime purpose of this lecture is to discuss on Hydrogen. This lecture briefly present on: Production of hydrogen, properties of hydrogen, Why is hydrogen unique, Test for hydrogen and Uses of hydrogen. This lecture also describe oroperties of hydrogen; they are; Colorless: – can’t be see; Odorless: – has no small; Tasteless: – doesn’t have a taste; Gas: – found in gas state, not liquid, or solid; Lightest gas: – least density, lighter then air etc.