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Oxyacetylene flame is used for iron-welding because it

Chemistry
JAMB 2004

Oxyacetylene flame is used for iron-welding because it

  • A. Makes the iron metals solidify very quickly
  • B. Combines with oxygen to give a pop sound
  • C. Evolves a lot of heat when burnt
  • D. Dissociates to produce carbon (IV) oxide and oxygen
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Correct Answer: Option C
Explanation

Oxyacetylene flames are used for welding iron because they produce a very high temperature that melts the iron. The flame produced by oxyacetylene is very hot, reaching temperatures of around 3,100°C. This is hot enough to melt steel, which has a melting point of over 1,500°C.

There is an explanation video available below.


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Explanation Video

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