Question

_______ sulphur does not possess sharp melting point.

• A. Rhombic
• B. Monoclinic
• C. Plastic
• D. All of the above

Answer 1

The correct option is C Plastic

Plastic Sulphur is an allotrope of sulphur. Since Plastic Sulphur is amorphous, it doesn't have a sharp melting point. It is because they possess short-range arrangement of atoms because sudden cooling of sulphur during the formation of plastic sulphur does not permit adequate time to for atom to adjust themselves.

Hence during melting, it becomes soft and does not have a sharp melting point.