Plastic or `chi-`sulphur is obtained by pouring liquid sulphur into

Options

A. water
B. ethanol
C. `CS_(2)`
D. benzene

Answer

1

Explanation

Refering to the previous question, as the temperature increases towards the boiling point sulphur (`444^(@)C`) the viscosity slowly drops as the polymer units start to fragment as a result of the greater thermal motion. If this liquid is poured into cold water ,a brown transparent rubbery solid called plastic sulphur is formed.This material slowly changes to microcrystals of rhombic sulphur. Several other forms can be produced by quenching molten S. These may b rfibrous ,laminar ,or rubber -like and a commercial form is called crystex, these are all metastable ,and revert to the `alpha` (cyclo-`S_(8)`) from on standing .Their structures contain spiral chains and sometimes `S_(8)` and others rings.