A science museum is arranging molecular formula cards. Each display case represents one homologous series.
One display case already contains a card for but-1-ene, C4H8\mathrm{C_{4}H_{8}}C4H8.
The curator considers four more cards.
| Card | Molecular formula |
|---|---|
| K | C5H12\mathrm{C_{5}H_{12}}C5H12 |
| L | C4H9OH\mathrm{C_{4}H_{9}OH}C4H9OH |
| M | C5H10\mathrm{C_{5}H_{10}}C5H10 |
| N | C3H7COOH\mathrm{C_{3}H_{7}COOH}C3H7COOH |
Which card should the curator add to this display case?
M, C5H10\mathrm{C_{5}H_{10}}C5H10
N, C3H7COOH\mathrm{C_{3}H_{7}COOH}C3H7COOH
L, C4H9OH\mathrm{C_{4}H_{9}OH}C4H9OH
K, C5H12\mathrm{C_{5}H_{12}}C5H12
131 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.