Why does sharp glass edge become smooth on heating it upto its melting point in a flame? Eplain which property of liquids is responsible for this phenomenon.
Assertion: On heating iodine crystal, iodine vapours are formed.
Reason: Iodine easily undergoes sublimation.
Mark the correct choice.
Tincture of iodine is a mixture of two materials iodine and alcohol. One of the material has a property that its solid form can be converted directly into vapours on heating by a process called X. Identify the material that sublimes and process X?