Multiple choice

Which of the following is not an alloy of aluminium?

  1. Duralumin

  2. Megallium

  3. Magnalium

  4. Nambe

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Megallium is an alloy of 60% cobalt, 20% chromium, 5% molybdenum, and traces of other substances. It is used in dentistry because of its light weight, resistance to corrosion and hypo-allergenic (nickel free) properties.