A-LevelChemistryHydroxy compounds9701/12 · Feb/Mar 2024 · Q311 Mark

X is an organic compound containing the elements carbon, hydrogen and oxygen only. The table shows the observations made from three chemical tests carried out on X. reagent added: Na(s), observation: effervescence reagent added: Na₂CO₃(s), observation: effervescence reagent added: hot H⁺/Cr₂O₇²⁻(aq), observation: remains orange What is a possible structure of X?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Askeletal formula of HOOC-COOH

Bskeletal formula of HOCH₂COOH

Cskeletal formula of OHC-COOH

Dskeletal formula of 2-hydroxy-2-methylpropanoic acid (C(CH3)2(OH)COOH)

✓ Correct answer

D: skeletal formula of 2-hydroxy-2-methylpropanoic acid (C(CH3)2(OH)COOH)

Oracle Prep sorts past-paper questions by topic, so you can drill Hydroxy compounds and see which topics are most likely to come up next.

Topic: Hydroxy compounds, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2024 Paper 1 Variant 2, question 31.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content