Question

Melting point of tungsten is _ _ _ _ _ _ $^{\circ}C$
A: 3422
B: 3322
C: 3420
D: 3430

Answer 1

Tungsten has the lowest value for coefficient of thermal expansion of any pure metal. It also has a very high value of melting point.
We can approach the question by keeping these points in mind.

Complete answer:
Tungsten has a very high value of melting point because of the strong metallic bond that is formed between the atoms of tungsten and the 5d electrons within it. Tungsten also has very high tensile strength. All these factors make tungsten the strongest element in the world.
When we are considering the purest form of tungsten and when we begin to heat it , we can observe that the element is capable of withstanding heat up to a very large value of about 6192 $^{\circ}F.$ Beyond this temperature, we find that the metal begins to melt.
All the given options are in terms of degree Celsius. Hence upon converting the Fahrenheit value to Celsius, we can obtain a temperature value of about 3422 $^{\circ}C.$
Thus we have obtained the melting point value for tungsten.

Hence, option A is the correct answer among the options that are given to us.

Note:
Sometimes the questions can be framed by correlating the application spectrum of tungsten.
At that point one must explain that all the above factors are the reasons behind tungsten is used in filaments, incandescent bulbs, electric contacts, arc welding electrodes, alloys like steel etc.