Which of the following is the lightest of engineering metals ?
Correct answer: A. Magnesium
- A. Magnesium
- B. Aluminium
- C. Titanium
- D. Tin
Explanation
Magnesium is the lightest of the commonly used engineering metals, with a density of about 1.7 g/cm³. Aluminium is next at about 2.7 g/cm³, while titanium and tin are substantially heavier.
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