Name and classify ethers, choose the right pair of partners for Williamson's synthesis, and work out which fragment of diethyl ether becomes the iodide when HI cleaves it.
Unit 3, Organic chemistry, carries 17 of the 50 chemistry marks; with eleven chapters sharing them, this one averages a little over one and a half (MEC publishes weights by unit, not by chapter). Ethers is the smallest chapter in the unit and the cheapest to finish — three scope points, one named synthesis, one compound whose reactions matter.
MEC scope: Nomenclature, classification and isomerism; Williamson's synthesis; Chemical properties of diethyl ether.
Three ways it is asked:
Upgrade to unlock this and every premium study note, formula sheet and high-yield summary — plus unlimited mocks and full solutions.
See the plansOrganic Chemistry: Functional Groups You Must Know
The functional groups, homologous series and reaction types that dominate the organic section.
Chemistry Formula Sheet — Rapid Revision
Physical chemistry relations, periodic trends, reagent-to-product maps for organic conversions, and the qualitative-analysis colours MECEE-BL keeps asking about.
Mole Concept & Stoichiometry Made Simple
Avogadro's number, molar mass, molarity and the calculations that show up every year.
Basic Concepts in Chemistry: Masses, Radicals and Formulae
The vocabulary every other chemistry chapter assumes: valency, the carbon-12 mass scale, the radical charges you must know cold, and the two routines that turn a percentage into a formula.