Chemistry 7404: Organic chemistry Topical Past Paper Questions
AQA AS Chemistry (7404) past-paper questions on Organic chemistry, free. This topic is frequently examined across 9 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
High resolution mass spectrometry can be used to determine the precise relative molecular mass of compounds. Which compound has a precise relative molecular mass that is different from the precise relative molecular mass of butanone? [1 mark] A but-3-en-1-ol B cyclobutanol C meth…
What is the atom economy for the formation of ethylamine in this reaction? $ \begin{array}{c} \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Br} + 2 \mathrm{NH}_{3} \rightarrow \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NH}_{2}+\mathrm{NH}_{4} \mathrm{Br} \\ \hline [1 \mathrm{~m a r k}] \e…
When 2-bromobutane is warmed with potassium hydroxide solution, substitution and elimination reactions both occur. What is the role of the hydroxide ions in the elimination reaction? [1 mark] A base B catalyst C electrophile D nucleophile
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