To help Class 12 students get ready for their board exams, the HP Board provides model papers. These papers show the exam pattern, marking scheme, and important topics. The Class 12th Chemistry ...

The formation of this new coupling using an imine bond was achieved by the reaction of an amine and different aromatic aldehydes. Rubber compounds with this new coupling ... together with the silica ...

Center for Analysis and Synthesis, Department of Chemistry, Lund University, Lund SE 221 00, Sweden ...