Which one of the following could be the melting point of iron?

The melting point of pure iron is scientifically established at approximately 1538° C [2]. This high melting point is a result of the strong metallic bonds and interparticle forces of attraction characteristic of iron [2]. While the exact temperature can vary slightly depending on the purity of the metal and the experimental method used, typical literature values range between 1535° C and 1539° C. Different forms of iron, such as cast iron or wrought iron, may have lower or slightly different melting ranges due to the presence of alloying elements like carbon, but pure iron consistently melts near the 1538° C mark [1]. Among the given options, 1500° C is the only value that closely approximates this physical property, as 25° C, 37° C, and 500° C are significantly below the required thermal energy to transition iron from a solid to a liquid state.

Sources

1. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 2: The Solar System > Iron Catastrophe and Planetary Differentiation > p. 18
2. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 7: Particulate Nature of Matter > Activity 7.3 : Let us find out > p. 103