Question

which of the following is true of iron? a. it has the highest electrical conductivity of any metal. b. it can exist in many alloys, usually with a carbon base. c. it is highly valuable, has symbolic meaning, and widely used. d. it is a durable metal and is commonly used for casting. please select the best answer from the choices provided

Explanation:

a. Silver and copper have higher electrical conductivity than iron, so false.
b. Iron commonly forms alloys with carbon (e.g., steel) and others, so true.
c. Iron is widely used but not highly valuable; symbolic meaning is limited, so false.
d. Pure iron is less commonly used for casting than alloys like cast iron, so false.

Answer:

B. It can exist in many alloys, usually with a carbon base.