Hydrogen

1. Hydrogen/Types of Hydrogen [Ortho and Para ]/Hydrides/Metallic hydride/Ionic hydride/Covalent hydride [ Electron deficient,Electron precise and Electron rich ]/water/Reaction with water.
2. Hydrogen/Dihydrogen/Prepartion of dihydrogen [Lab Method ,Commerical method,From Hydrocarbon,Coal gas reaction and water gas shift ]/Property of dihydrogen/Reaction with dihydrogen/Hydrogen peroxide/Preparation of Hydrogen per oxide/Properties of Hydrogen peroxide/Oxidative bleaching.
3. Hydrogen/Reaction with Hydrogen peroxide/Heavy water/Reaction of heavy water/Uses of heavy water.
4. Hydrogen/Hardness/Temporary hardness and permanent hardness/Removal of hardness .