Class 12 chemistry practical file is the file logical investigation of the properties and conduct of issue. It is an inherent science that covers the components that make up issue to the mixtures made out of iotas, particles and particles. In class 12 chemistry practical file there are a number of practical that are done by students physically. In the extent of its subject, Class 12 chemistry practical file involves a middle situation among organic chemistry and science. It is here and there called the focal science since it gives an establishment to understanding both essential and applied logical disciplines at a principal level. 

chemistry teaches us that how particles, molecules and atoms connect through synthetic bonds to shape new substance compounds. There are two sorts of synthetic bonds: 1. essential substance bonds e.g covalent bonds, in which iotas share at least one electron; ionic bonds, in which a molecule gives at least one electrons to one more particle to create particles (cations and anions); metallic bonds and 2. optional substance bonds for example hydrogen bonds; Van der Waals power bonds, particle collaboration, particle dipole connection and so forth.