eng Science and Education Publishing World Journal of Chemical Education 2375-1657 2018-04-04 6 2 95 101 10.12691/wjce-6-2-4 WJCE2018624 article Arijit Das arijitdas78chem@gmail.com, arijitdas_chem@rediffmail.com 1 Department of Chemistry, Ramthakur College, Agartala -799003, Tripura West, Tripura, India In this approach, formulae based mnemonics by counting lone pair of electrons (localized or delocalized) have been highlighted by innovative and time economic way to enhance interest of students' who belong to paranoia zone of chemistry for the prediction of Hybridization state of hetero atom and Aromatic, Anti aromatic, non aromatic behavior of different heterocyclic compounds. Here, I have tried to hub three (03) time economic mnemonics by including three (03) formulae for the prediction of hybridization of hetero atom, aromatic and anti aromatic behavior of heterocyclic compounds. This article encourages students to solve multiple choice type questions (MCQs) on 'Aromaticity of Heterocyclic compounds' at different competitive examinations in a time economic ground. http://pubs.sciepub.com/wjce/6/2/4/wjce-6-2-4.pdf high school under graduate student graduate student post graduate student chemical education research heterocyclic compound DLP LLP hybridization aromatic anti aromatic and non aromatic