UKChO evidence desk
News & study guides
Source-led updates on UK Chemistry Olympiad results, registration, official resources and preparation practice. Dated facts are separated from evergreen study guidance.
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UKChO Round 2 Eligibility: Planning the Right Route for China-Based Students
Clarify how UKChO Round 2 eligibility works for China-based students. Understand route-specific rules, the role of your school, and why Round 1 success isn’t automatic entry.
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UKChO Past Papers: Which Years to Prioritise When You Have Ten Weeks or Fewer
Struggling to choose which UKChO past papers to solve? With ten weeks left, prioritize the 2024-2026 sets to master the 84-mark format and avoid outdated traps.
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UKChO Exam Access Arrangements: Extra Time, Braille Papers and the Round 2 Evidence Rule
UKChO permits extra time in Round 1 if a student normally receives it for external exams, requires braille or major accessibility requests by 15 November, and demands a SENDCO-agreed letter before Round 2. This guide maps every step so no student loses an arrangement through a missed deadline or missing paperwork.
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UKChO Stereochemistry for 2027: How to Count Every Isomer When the Question Won’t Say How Many
In 2026 many UKChO candidates found the stereocentre but few counted the combinations, and many stopped at one tautomer. A five-step method to count every isomer.
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UKChO Bonding Questions for 2027: Count Lone Pairs, Place Formal Charges and Predict Shapes Without Guessing
The 2026 UKChO examiners flagged missing chlorine octets, miscounted lone pairs and misplaced diazonium charges. One written electron count prevents all three.
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UKChO Coaching or Self-Study for 2027? Find Your Bottleneck, Then Ask Any Course These Eight Questions
Entry for UKChO 2027 opens 16 September. Before paying for a course, find which of five bottlenecks costs you marks, then vet any course, ours included, with eight questions.
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No Chemistry Olympiad Club? How Four Students Can Train Each Other for UKChO 2027
Four students, four rotating roles and ninety minutes a week will do most of what a coached club does. The session format, the marking rules and an eighteen-week cadence.
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UKChO Electrochemistry: What a Standard Electrode Potential Predicts, What It Cannot, and the Faraday Arithmetic
Electrode potentials predict direction, feasibility and disproportionation – never rate. The cell arithmetic, the pH trap and the Faraday chain, worked in full.
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What to Actually Read for UKChO 2027: Building a Resource Stack That Fits an 84-Mark Paper
Entry for UKChO 2027 opens on 16 September. Before it does, fix your reading: a four-tier resource stack sized to an 84-mark paper, and what to leave alone.
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What a UKChO Gold Does Inside an Application: Five Offer Trajectories From Our Own Records
Five students from our own coaching records – offers from Oxford, Cambridge, Imperial, UCL and Yale – all carried a UKChO gold, and none carried it alone. Each file paired the gold with corroborating evidence: same-subject contests abroad, adjacent olympiads, research projects, coursework. With 2027 registration opening 16 September, here is how a chemistry file…