Write any three physical properties of the given metals.
a. Iron:
> It is good conductor of heat.
> Its specific gravity is 7.86.
> It is malleable and ductile.
b. Aluminium:
> It is good conductor of heat and electricity.
> its specific gravity is 2.7.
> It is highly malleable and ductile.
c. Copper:
> It is good conductor of heat and electricity.
> its specific gravity is 8.95.
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