GENERAL KNOWLEDGE

Detailed explanation-1: -Melting point is thee temperature at which a solid changes into liquid. It is a change of physical state of a substance in which the chemical composition do not change. So, it is catogerised as physical properties.

Detailed explanation-2: -For example, sodium chloride (NaCl) is an ionic compound, which is made up of strong ionic bonds. Thus, it melts at high temperatures, i.e., 801°C, whereas ice is a compound comprising of hydrogen bonds, whose strength is less than ionic bonds. Hence, ice melts at low temperatures, i.e., 0°C.

Detailed explanation-3: -Intensive Property Examples Temperatures, density, colour, melting and boiling point, etc., all are intensive properties as they will not change with a change in size or quantity of matter.

Detailed explanation-4: -The melting point of a substance is the temperature at which its solid and liquid phases are in balance. The boiling point of a substance is the temperature at which its vapour pressure equals the external pressure.