Multiple Choice
Solder is a fusible metal alloy that is used to join together metal wires or work pieces.Old-style solder was often 60% tin( r = 140 pm) and 40% lead (r = 154 pm) .Heating the solder caused it to melt; upon cooling, small sites would develop that were richer in Pb, which has a higher melting point than Sn. Cooled solder is thus best classified as
A) a homogeneous alloy.
B) a heterogeneous alloy.
C) an interstitial alloy.
D) a colloidal alloy.
E) an intermetallic compound.
Correct Answer:
Verified
Correct Answer:
Verified
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