👉Handbooks, Shortcuts, Tips & Tricks of Physics, Chemistry, Mathematics and Biology This application includes key notes, definitions, formulae, terms and flow charts of Physics, Chemistry, Biology and Mathematics of class 11 and class 12. This Handbook is an important, useful reference app which is suitable for daily study, problem solving or quick revision for class XI & class XII, Engineering and Medical entrances and other Competitions Aspirants. 👉This app is a quick revision resource wh