Question

which of the following is not true of silver?
a. it has the highest electrical conductivity of all metals.
b. it is a precious metal used to make ornaments, jewelry, and utensils.
c. it is a copper alloy, usually mixed tin as the main additive.
d. it is very ductile and malleable, slightly harder than gold.
please select the best answer from the choices provided

Explanation:

• Option a: Silver indeed has the highest electrical conductivity among metals.
• Option b: Silver is a precious metal and is used for making ornaments, jewelry, and utensils.
• Option c: Silver is not a copper alloy. Bronze is a copper - tin alloy. Silver is a pure element (Ag) or can be in sterling silver (an alloy with copper as the main additive, not tin).
• Option d: Silver is very ductile and malleable and is slightly harder than gold.

Answer:

C. It is a copper alloy, usually mixed tin as the main additive.