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IRON MCQs

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1. The symbol of iron is:





2. Iron has color:





3. Iron has melting point is:





4. Limonite formula is:





5. The formula of hematite is:





6. Percentage of carbon in pig iron:





7. Pig iron is also known as:





8. Iron is mainly extracted from:





9. After melting pig iron the cooled metal is known as:





10. The furnace used for iron extraction:





11. Conversion of carbon dioxide to carbon monoxide is called:





12. Wrought iron purity is:





13. Percentage of carbon in wrought iron is:





14. Minimum percentage of carbon is present in:





15. Furnace used for wrought iron:





16. Hard type of iron is:





17. Furnace used for steel making is:





18. Slow cooling of hot steel is called:





19. From open hearth furnace the obtained steel is:





20. Gas used to maintain temperature of open hearth furnace:





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