One molecule of compound J burns completely in oxygen. It reacts with 6 molecules of oxygen, O2\mathrm{O_{2}}O2, and forms 4 molecules of carbon dioxide and 5 molecules of water.
What is compound J?
Butane, C4H10\mathrm{C_{4}H_{10}}C4H10
Butanol, C4H9OH\mathrm{C_{4}H_{9}OH}C4H9OH
Butene, C4H8\mathrm{C_{4}H_{8}}C4H8
Butanoic acid, C3H7COOH\mathrm{C_{3}H_{7}COOH}C3H7COOH
63 exam-style questions on OCR GCSE Chemistry 6.2 Organic chemistry, covering 6.2.1 Crude oil and fractional distillation, 6.2.2 Cracking and dependence on hydrocarbons, 6.2.3 Functional groups and homologous series, 6.2.4 Reactions of alkanes, alkenes and alcohols, 6.2.5 Addition polymerisation and repeat units, 6.2.6 Naturally occurring polymers, 6.2.7 Chemical cells and fuel cells, and 6.2.8 Condensation polymerisation and how to make one. Each one has a worked solution and a mark scheme showing where the marks go.