February/March 2026 Paper 12

2026 · 40 questions · 40 parts · 40 marks

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39Organic SynthesisHard1 mark

When 1-bromopropane is treated in succession with two reagents, X and Y, it produces propanoic acid. What are reagents X and Y?

	reagent X	reagent Y
A	NaOH(aq)	H $^{+}$ / Cr $_{2}$ O $_{7}^{2 -}$ (aq)
B	NaOH(aq)	CO $_{2}$
C	KCN in ethanol	HCl(aq)
D	KCN in ethanol	NaOH(aq)