Question

The scale of temperature where the melting point of ice is $0^{\circ}$ and the boiling point of water is taken as $100^{\circ}$ is
A. Celsius
B. Fahrenheit
C. Kelvin
D. None of the above

Answer 1

We can define the scale and answer this question with the help of the definition of the boiling point and melting point and the relation of boiling point and the melting point of water with the temperature scale.

Complete answer:
The melting point and the boiling point of water is given in the question and in simple words, in the question, it is given that the temperature at which the ice turns into water is $0$ and the temperature at which the water turns into vapour is $100$. Now we are to find which scale of the temperature represents the number correctly.

Degree Celsius is the unit of temperature which can refer to a specific temperature on the Celsius scale and the Fahrenheit scale on the other hand is a scale that was proposed on $1724$ by Daniel Gabriel Fahrenheit. Kelvin is another temperature scale. Let us now discuss their relation to water with the temperature scale.

In the Kelvin scale, the melting point and boiling point of water are $273\,k$ and $373\,k$ respectively. However, in the case of the Fahrenheit scale, the melting point and boiling points are $32\,F$ and $132\,F$ respectively. And in case of degree Celsius it is $0{}^\circ$C and $100{}^\circ$C respectively.tTherefore,the scale of temperature where the melting point of ice is $0{}^\circ$ and the boiling point of water is taken as $100{}^\circ$ is Celsius.

Therefore, the correct answer is option A.

Note: The units of temperature are interchangeable. That is, if you have the Kelvin scale of temperature then you can easily change it to the Celsius scale with the required formula and vice versa.