Melting of butter is a physical change.
Classify the following as a physical or a chemical change :
(a) Drying of wet clothes
(b) Manufacture of salt from seawater.
(c) Butter getting rancid
(d) Boiling of water
(e) Burning of paper
(f) Melting of wax
(g) Burning of coal
Is melting if wax physical change???