Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when surface ligand π* antibonding orbitals excessively mix with metal d-orbitals in a catalyst particle?
A)Increased catalytic turnover frequency
B)Decreased catalyst-substrate binding
C)Enhanced metal-ligand backbonding
D)Accelerated oxidative catalyst degradation✓
💡 Explanation
Accelerated oxidative catalyst degradation occurs because increased π* orbital mixing enhances electron donation to the metal core, increasing its electron density. This weakens metal-ligand bonds, triggering decomposition, therefore accelerating catalyst degradation, rather than improving activity.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which mechanism limits oxidation rate uniformity in silicon nanowire fabrication via thermal oxidation within dense arrays?
- Which consequence results when microwave radiation experiences dispersion?
- Which consequence results when gravitational mass and inertial mass inequivalence arises in a torsion balance?
- Which mechanism causes light to bend near supermassive blackholes?
- Which outcome occurs when a Stirling engine operates with an imperfect regenerator regarding its thermal mass?
- Which mechanism limits maximum data propagation speed in a copper Ethernet cable?
