Multiple choice general knowledge science & technology

Which of the following are the ingredients of gun metal?

  1. Iron, Zinc, Titanium

  2. Iron, tin

  3. Iron, Brass, Tin

  4. Copper, Tin
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gun metal (or gunmetal) is a bronze alloy composed of copper (85-90%) and tin (10-15%), known for strength and corrosion resistance - historically used for cannons. It does not contain iron, brass (copper+zinc), or titanium. The incorrect options all include iron, which is not part of traditional gun metal.

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