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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. (15[1]-5[1])(*) Sp2 hybridization permits the formation of these interactions that form from the sideways overlap of p orbitals. (-5[1])A double bond contains a sigma bond and, for 10 points, (10[1])which other type of bond? (10[1])■END■ (10[1])

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

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Buzzes

PlayerTeamOpponentBuzzpointValue
Keke XiuAbbey ParkBurlington Trojans5815
Taha FarooqRenertBella Vista58-5
Gavin HarperNorthernMartingrove75-5
Muye ChenCheese SandwichGlebe8610
Penny McClementMartingroveNorthern9110
Pranavkrishna BharanidharanBella VistaRenert9210

Summary

TournamentEditionMatchHeardConv. %Power %Neg %Avg. Buzz
VAULT II at Georgia Tech2026-01-24✓6100%50%33%68.17
Triangle Cup2026-03-13✓367%33%33%52.50
VAULT II at Eden Prairie HS2026-03-13✓333%33%67%49.00
VAULT II at McGill2026-03-13✓4100%25%50%81.75
VAULT II at UCSB2026-03-13✓5100%60%20%60.20
VAULT II Northern UK2026-04-24✓3100%0%0%74.00
VAULT II Southern UK2026-04-24✓4100%75%0%48.00
VAULT II at Harvard2026-04-30✓3100%33%0%69.33
VAULT II at MINT2026-06-19✓5100%40%0%74.80
VAULT II Stanford Online2026-07-17✓8100%38%63%65.00