Chemistry WCH11: Energetics, Group Chemistry, Halogenoalkanes and Alcohols Topical Past Paper Questions

The smell of freshly cut grass is caused by the release of volatile organic compounds. The most important contributors to this smell are alcohols and aldehydes, both saturated and unsaturated, which contain six carbon atoms. The compound Z-hex-3-enal, one of the major components…

Magnesium carbonate has been studied recently as a potential material for the removal of carbon dioxide from the atmosphere. (a) The value of n in a sample of a hydrated magnesium carbonate, $\mathrm{MgCO_{3}\cdot nH_{2}O}$, can be determined by the reaction with hydrochloric aci…

Terpenes and terpenoids are groups of chemicals found in plants. They contribute to the smell and taste of the plant, and so are used in flavourings and perfumes. Both terpenes and terpenoids have carbon skeletons based on one or more units of the compound isoprene. isoprene Terp…