Chemistry past papers › 9701/21/O/N/20
9701/21/O/N/20 Question 4
Chemistry October/November 2020 Paper 21 · 16 marks · Physical properties of the Group 17 elements, Halogens and hydrogen halides, Intermolecular forces, The reactions of chlorine, Making halogenoalkanes, Addition polymers and the bromine test, Organic formulas and naming, Nucleophilic substitution reactions, Elimination, Cis/trans isomerism, Oxidising alkenes, Tests for carbonyls
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