VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesHistoryQuestion
Question
History

Which consequence results when early Chinese blast furnaces used coke from coal rather than charcoal for smelting?

A)Increased sulfur contamination in iron
B)Reduced carbon content in steel
C)Higher silica content in slag
D)Decreased phosphorus concentration in iron

💡 Explanation

Using coke with higher sulfur content caused increased sulfur contamination in the iron due to the principle of chemical absorption; because sulfur readily dissolves in molten iron, rather than being fully removed during smelting, therefore the iron's brittleness increased during forging.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse History