This book covers key areas of Chemistry and Biochemistry. The contributions by the authors include Gas chromatograph with mass detector, chemical warfare agent, nerve agent, blister agent, response factor, microorganisms, Extended viologens, Zincke salt, metathesis reaction, ionic liquid crystals, thermotropic, differential scanning calorimetry, polarizing optical microscopy, X-ray diffraction, thermogravimetric analysis, ANS fluorescence, DPH emission polarization, alpha-tocopherol carba analogue, phase transition, liposome melting, Host- guest inclusion complex, ionic liquid, cyclodextrin, surface tension, Conductance, metathesis reaction, gel permeation chromatography, hairy-rod polymers, lyotropic liquid-crystalline phase, polarizing optical microscopy, Small-Angle X-ray Scattering, differential scanning calorimetry, thermogravimetric analysis, luminescence, UV-Vis spectroscopy, aggregation, Arginine, brain aging, catechin, epigallocatechin gallate, green tea, stress reduction, theanine, Sodium saccharine, glassy carbon electrode, carbon nanotubes, and cyclic voltammetry. This book contains various materials suitable for students, researchers and academicians in the field of Chemistry and Biochemistry.