Question

are the three states of matter Inter-convertible what type of change will it be

Answer 1

yes,three states of matter r interconvertible. ....
the types of change Oare by boiling,freezing and melting ...
it is also used in daily life
eg-water boiled and convert into gaseous state and freezing of water into ice and so on

Answer 2

Yes three states of matter are inter convertible... it will be physical change
E.g. water (liquid state) can be converted to ice (solid state) on cooling to 0^C and to water vapour (gaseous state ) on boiling water to 100^C