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In the extraction of iron, hot air is introduced into the blast furnace through?

Chemistry
JAMB 2022

In the extraction of iron, hot air is introduced into the blast furnace through?

  • A. valves
  • B. open-hearths
  • C. arcs
  • D. tuyeres
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Correct Answer: Option D
Explanation

Pre-heated air at about 600ºC is blown into the furnaces from the bottom through the tuyeres.

There is an explanation video available below.

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Explanation Video

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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