Question 39
Metals and their CompoundsThe alloy that contain iron from the following is
- A.brass and bronze
- B.duralumin and steel
- C.soft solder and duralumin
- D.steel and pemalloy
Show the answer and explanation
Answer: D (steel and pemalloy)
Explanation
Steel is iron with carbon, and permalloy is iron with nickel; brass, bronze, solder and duralumin contain no iron (duralumin is mostly aluminium).