Chemistry 7405/2 June 2019

The June 2019 AQA A-level Chemistry paper covers Organic and Physical Chemistry, featuring topics such as synthesis and mechanisms of organic compounds (amines, cyclohexene, paracetamol), polymer chemistry, isomer identification, and reaction kinetics. It includes calculations for percentage yield, rate constants, and activation energy using Arrhenius equations. Analytical techniques such as infrared spectroscopy, NMR, and chromatography are tested alongside DNA and biodiesel chemistry. Keywords: organic synthesis, reaction mechanisms, spectroscopy, kinetics, polymers, green chemistry, biodiesel, DNA.