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Results & Problems

Access official results and problems from ARBIChO.

Fields of advanced difficulty

Theory

  1. 1H NMR: signal splitting, integral intensities.
  2. Advanced stereochemistry: non-carbon stereocenters, helical chirality, three-dimensional structure of bridged and fused polycyclic compounds; symmetry operations in organic molecules.
  3. Nucleic acids and peptides: replication, transcription, and translation without reaction mechanism details.
  4. Enzyme kinetics. Michaelis-Menten equation.
  5. Basics of X-Ray Diffraction: Bragg’s Law, common types of crystal lattices, Miller indices.

Practice

  1. Using micropipettes and 96-well plates.
Results

ARBIChO 2023 Final Results

June 17, 2023
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ARBIChO 2025 Final Results

June 4, 2025
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Problems

ARBIChO 2025 Theory Solutions (Official)

ARBIChO 2025•2.1 MB
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ARBIChO 2025 Practice Problems (Official)

ARBIChO 2025•621.0 KB
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ARBIChO 2025 Theory Final

ARBIChO 2025•1.3 MB
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ARBIChO 2025 Practice Answer Sheets (Official)

ARBIChO 2025•427.5 KB
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ARBIChO 2025 Practice Solutions (Official)

ARBIChO 2025•505.5 KB
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ARBIChO 2025 Theory Answer Sheets (Official)

ARBIChO 2025•448.0 KB
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