which of the following is true of iron? a. it has the highest electrical conductivity of any metal. b. it…

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 a b c d
Answer
Brief Explanations:
- Option a: Silver has higher electrical - conductivity than iron.
- Option b: Iron - based alloys usually have iron as the base, not carbon.
- Option c: While iron is widely used, it is not highly valuable in the same sense as precious metals and may not have as much symbolic meaning as some other materials.
- Option d: Iron is a durable metal and is commonly used for casting due to its properties like high melting - point and strength.
Answer:
D. It is a durable metal and is commonly used for casting.