Round 7: Tossup 12
Electrons from a filled d orbital in a coordination compound donate into a vacant one of these interactions in backbonding. One type of these interactions act as a nucleophile in the first step of oxymercuration demercuration. Huckel’s rule determines aromaticity based on the number of electrons belonging to these interactions. Conjugated systems possess a delocalized network of these interactions. (*) Sp2 hybridization permits the formation of these interactions that form from the sideways overlap of p orbitals. A double bond contains a sigma bond and, for 10 points, which other type of bond? ■END■
ANSWER: Pi bonds [accept Pi orbital or pi-star orbital or pi-antibonding orbital or pi-backbonding or carbon-carbon pi-bond or pi system; prompt on carbon-carbon double bonds until mentioned]
<Science - Chemistry, Rohan Ganeshan> | VAULT II Packet 07
= Average correct buzzpoint
Buzzes
| Player | Team | Opponent | Buzzpoint | Value |
|---|---|---|---|---|
| Simon Zhang | Lexington B | Mansfield A | 49 | 15 |
| Willow Bhargava | Waltham A | Belmont A | 68 | 10 |
| Daniel Sheffield | Belmont B | Mansfield B | 91 | 10 |
Summary
| Tournament | Edition | Match | Heard | Conv. % | Power % | Neg % | Avg. Buzz |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✓ | 6 | 100% | 50% | 33% | 68.17 |
| Triangle Cup | 2026-03-13 | ✓ | 3 | 67% | 33% | 33% | 52.50 |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✓ | 3 | 33% | 33% | 67% | 49.00 |
| VAULT II at McGill | 2026-03-13 | ✓ | 4 | 100% | 25% | 50% | 81.75 |
| VAULT II at UCSB | 2026-03-13 | ✓ | 5 | 100% | 60% | 20% | 60.20 |
| VAULT II Northern UK | 2026-04-24 | ✓ | 3 | 100% | 0% | 0% | 74.00 |
| VAULT II Southern UK | 2026-04-24 | ✓ | 4 | 100% | 75% | 0% | 48.00 |
| VAULT II at Harvard | 2026-04-30 | ✓ | 3 | 100% | 33% | 0% | 69.33 |
| VAULT II at MINT | 2026-06-19 | ✓ | 5 | 100% | 40% | 0% | 74.80 |
| VAULT II Stanford Online | 2026-07-17 | ✓ | 8 | 100% | 38% | 63% | 65.00 |