"Describe" questions — AQA A-Level Chemistry (7405)
33 questions · chemistry · View as Markdown
How to answer
Say WHAT happens, in order. No reasoning. Structure: 1. First X. 2. Then Y. 3. Then Z. Assessment Objective: AO1. Every "describe" answer on this spec is marked against exactly this pattern.
Sample questions
- Describe how a student could use the relative formula mass of a substance and a known number of moles to calculate the m…
- Describe how the properties of elements change across Period 3 of the periodic table, from sodium to argon. Include at l…
- Ethanol can be produced by fermentation or by hydration of ethene. Describe the process of fermentation to produce ethan…
- A student is given four unlabelled liquids. The liquids are ethanol, ethanoic acid, propene and octane. The student uses…
- Describe the trends in reactivity and the nature of the oxides as you descend Group 2 of the periodic table. Explain why…
- A chemist has three unlabelled bottles. Each bottle contains one of the following liquids: an alkane, an alkene, or a ca…
- Ethene can be produced by cracking long-chain hydrocarbons from crude oil. Describe the two methods by which cracking ca…
- A student has three unlabelled solutions: copper(II) sulfate, iron(III) chloride, and zinc sulfate. Describe how the stu…