1 1. SOME BASIC CONCEPTS OF CHEMISTRY Chemistry Smart Booklet Theory + NCERT MCQs+Topicwise Practice MCQs + NEET PYQs23 In tr od uction : Chemistr y is the sc ienc e of molecules and their tr ans formatio ns w hi ch deals w ith the stu dy of matt er, its co mp osit ion, the chan ges that matter u nd erg oes and the relat io n between chan ges in c o mp osit ion and c han ges in ener gy. Chemi str y plays an impor tant ro le in meet ing hu man needs for food, h ealth care pr odu cts . Bran ch es o f C hemi stry : Org ani c Chemi stry - Thi s branc h deals w ith stu dy of car bon co mp ou nd s esp ecially hydrocar bons and their der ivativ es. Inorgani c Chemi stry - This branc h deals w ith the stu dy of co mp ou nd s o f all other elements except c ar bo n. It la rg el y c o nc erns it s elf with the stu dy of mi ner