Question

what is melting point and boiling point ?

Answer 1

hai friend,

here is your answer
_________________________
Melting point :-
------------------

#The temperature at which a substance starts to melt and convert into liquid form is known as melting point.

#melting point of water is 0°C

Boiling point :-
-------------------
# The temperature at which a substance starts to boil and convert into gaseous state is known as boiling point .

# Boiling point of water is 100°C

------------------------------------------------

hope helped :)

Answer 2

Melting points ⇒ Melting point is a temperature at which solid melts and                                   change to liquid state. 
 
      Example :- Melting point of Iron = 1,538 °C

Boiling points ⇒ The boiling point of a substance is the temperature at                                      which the vapor pressure of the liquid is equal to the                                       pressure of the gas above it.

      Example :-  Boiling point of water = 99.98 °C