When tin is selectively removed from an artifact made of arsenical bronze which outcome is observed?

💡 Explanation

Selective tin removal, also known as dezincification, leaves behind a porous, copper-rich structure which increases hardness because copper work hardens more efficiently. therefore increased hardness and brittleness occurs rather than reduced density, softening or corrosion resistance which different compositional changes.

• Which accuracy risk increased for 18th-century open-balance escapement chronometers during long sea voyages near the equator?
• Which risk increased as Incan terrace walls exceeded critical heights during intensive maize cultivation?
• Which risk increased when early Bronze Age smiths reworked solidified bronze castings?
• Which structural mechanism caused the collapse of some Roman aqueduct arches during seismic activity and large temperature swings?
• Which function did the 'Equation of Time' serve in pre-18th century astronomical timekeeping?
• Which risk increases when early blast furnace operators add excessive charcoal during iron production?