Metal which does not form amalgam :
AIron
BGold
CZinc
DCopper
Answer:
A. Iron
Read Explanation:
An amalgam is an alloy, or a mixture, of mercury with another metal.
Most metals readily dissolve in mercury to form an amalgam, which can be a liquid, a paste, or a solid, depending on the proportion of mercury.
A common example is the dental amalgam used for tooth fillings, which is an alloy of mercury with silver, tin, and copper.