Packet 2: Bonus 19
In Kuhn–Roth estimation, the number of methyl groups on a compound can be determined by treating it with an acid containing this metal, then distilling for acetic acid. For 10 points each:
[10m] A reagent containing what metal is used to convert toluene to benzoic acid in the Étard reaction? Pyridinium pairs with a polyatomic anion containing this metal in a reagent used to convert alcohols into carbonyls.
ANSWER: chromium [or Cr; accept chromic acid; accept chromyl chloride; accept pyridinium chlorochromate]
[10e] A reagent containing chromic acid is used to directly prepare carboxylic acids from primary alcohols in one of these reactions named for Ewart Jones, which results in a loss of electrons.
ANSWER: oxidation [accept Jones oxidation; prompt on redox reactions or reduction-oxidation reactions]
[10h] Chromic acid shortens carboxylic acids in a reaction named for a chemist with this surname and Philippe Barbier. A man with this surname is the alphabetically-later namesake of a ketone used as a steroid synthesis starter.
ANSWER: Wieland [accept Henrich Otto Wieland; accept Peter Wieland; accept Barbier–Wieland degradation; accept Wieland–Miescher ketone]
<KN, Chemistry> | NAFTA-Packet-2
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 37 | 19.73 | 97% | 62% | 38% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Berkeley A | Stanford A | 10 | 10 | 10 | 30 | MEH |
| Constans Constantius and Constantine Jr. | Team 7 | 10 | 10 | 10 | 30 | MEH |
| Not Old! (Old) | Team 8 | 10 | 10 | 0 | 20 | ME |
| Stanford B | Berkeley B | 10 | 10 | 10 | 30 | MEH |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| 2026 NAFTA at Stanford | 01/17/2026 | ✓ | 4 | 27.50 | 100% | 100% | 75% |
| 2026 NAFTA at UBC | 01/17/2026 | ✓ | 1 | 30.00 | 100% | 100% | 100% |
| 2025 NAFTA Online | 02/14/2026 | ✓ | 4 | 17.50 | 75% | 75% | 25% |
| 2026 NAFTA at Vanderbilt | 02/14/2026 | ✓ | 2 | 10.00 | 100% | 0% | 0% |
| 2025 NAFTA at Toronto | 09/13/2025 | ✓ | 3 | 16.67 | 100% | 33% | 33% |
| 2025 NAFTA at Maryland | 09/27/2025 | ✓ | 4 | 17.50 | 100% | 50% | 25% |
| 2025 NAFTA at Harvard | 10/04/2025 | ✓ | 3 | 26.67 | 100% | 100% | 67% |
| 2025 NAFTA at Oxford | 10/11/2025 | ✓ | 3 | 20.00 | 100% | 67% | 33% |
| 2025 NAFTA at Chicago | 11/08/2025 | ✓ | 6 | 20.00 | 100% | 67% | 33% |
| 2025 NAFTA at Columbia | 11/08/2025 | ✓ | 5 | 20.00 | 100% | 60% | 40% |
| 2025 NAFTA at Richmond | 12/20/2025 | ✓ | 2 | 10.00 | 100% | 0% | 0% |