# "Describe and explain" questions — Eduqas A-Level Chemistry

> 17 questions · chemistry

## How to answer

"describe and explain" questions from Eduqas A-Level Chemistry. Read the rubric carefully — the marking points cluster into scientific ideas rather than free-form prose.

## Sample questions

1. [A sports drink manufacturer wants to check that a new batch of drink contains the correct mixture of compounds. A sample…](https://www.gradenine.co.uk/q/a-sports-drink-manufacturer-wants-to-36c6a7c3)
2. [Amino acids can join together to form peptides and proteins. Describe how amino acids are structured and explain how the…](https://www.gradenine.co.uk/q/amino-acids-can-join-together-to-6149bfc2)
3. [Bromoethane can react with ammonia to produce an organic product. Describe what is meant by the term halogenoalkane and …](https://www.gradenine.co.uk/q/bromoethane-can-react-with-ammonia-to-6c5e3970)
4. [Methane (CH₄) is the simplest hydrocarbon and is the main component of natural gas. Describe what is meant by the term '…](https://www.gradenine.co.uk/q/methane-ch-is-the-simplest-hydrocarbon-854de864)
5. [Methanol, ethanol and propan-1-ol are the first three members of the alcohol homologous series. Describe the physical pr…](https://www.gradenine.co.uk/q/methanol-ethanol-and-propan-1-ol-are-the-8796ddaa)
6. [Ethanol can be produced by fermentation using yeast and glucose. The ethanol produced can then be separated from the fer…](https://www.gradenine.co.uk/q/ethanol-can-be-produced-by-fermentation-8c3bb3c6)
7. [Butanone and butanal are both carbonyl compounds with the molecular formula C₄H₈O. A chemist wants to identify which com…](https://www.gradenine.co.uk/q/butanone-and-butanal-are-both-carbonyl-93bbe6c4)
8. [Propanoic acid reacts with sodium carbonate solution. Describe what you would observe during this reaction and explain w…](https://www.gradenine.co.uk/q/propanoic-acid-reacts-with-sodium-carbonate-9a73ba54)

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