Question

Plastic sulphur is ________ of $S_8$ molecule.

• A. an open chain
• B. close chain
• C. branch chain
• D. none of these

Answer 1

The correct option is A an open chain

Amorphous or plastic sulphur is produced by rapid cooling of molten sulphur $e.g.$ by pouring it in cold water. It has helical form and metastable at room temperature reverting to its crystal allotrope and has a sharp melting point. It has open chain structure as compared to another allotrope which is a cyclo octahedral shape.