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:

• Option a: Silver has higher electrical conductivity than iron.
• Option b: Iron - based alloys usually have iron as the base, not carbon.
• Option c: Gold and some other precious metals are more highly - valued in a general sense compared to iron.
• Option d: Iron is a durable metal and is commonly used for casting, such as in the production of iron castings for various industrial and construction purposes.

Answer:

D