Multiple choice

Amalgam is a mixture of

  1. Hg and Pb

  2. Hg and Na

  3. Hg and Au

  4. Hg and Al

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

Amalgam is a metallic filling material composed from a mixture of mercury (from 43% to 54%) and powdered alloy made mostly of silver, tin,zinc and copper commonly called the amalgam alloy.