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The alloy used for welding and plumbing contains

Chemistry
NECO 2001

The alloy used for welding and plumbing contains

  • A. aluminum and copper.
  • B. copper and tin
  • C. iron and aluminum.
  • D. lead and antimony.
  • E. lead and tin.
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Correct Answer: Option E
Explanation

The primary alloy for plumbing and low-temp welding (soldering) is solder, typically a tin-lead alloy (like 63% tin, 37% lead) for its low melting point, but modern plumbing often uses lead-free solder (tin-silver-copper) or brazing alloys, while actual high-heat welding uses various filler alloys like steel, bronze, or aluminum, depending on the base metal.


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