5-mark practice questions — Eduqas A-Level Chemistry
165 questions · chemistry · View as Markdown
How to answer
5-mark questions typically award marks for structured argument: two ideas + linked because + specific example + conclusion.
Sample questions
- The reaction between hydrogen and iodine reaches a dynamic equilibrium in a closed container. H₂(g) + I₂(g) ⇌ 2HI(g) W…
- A student tests two unknown organic compounds, Compound A and Compound B, using Fehling's solution. Compound A produces …
- Ethene (C₂H₄) is a hydrocarbon. A student states: 'When ethene burns completely in oxygen, the total mass of the product…
- A student uses paper chromatography to separate the coloured pigments in a sample of black ink. After running the chroma…
- Pent-2-ene can exist as cis and trans stereoisomers. Explain why pent-2-ene can form cis and trans isomers, and state on…
- Propan-1-ol (CH₃CH₂CH₂OH) and 1-chloropropane (CH₃CH₂CH₂Cl) belong to different homologous series. Describe the similari…
- A student wants to prepare a sample of ethyl ethanoate in the laboratory. Describe how the student would carry out this …
- Elements in the periodic table are arranged in periods and groups. Explain what is meant by the terms 'period' and 'grou…