Question

When molten sulphur is quenched, then which of the following is formed?
A.Monoclinic sulphur
B.Rhombic sulphur
C.Crystex (plastic)
D.Gamma sulphur

Answer 1

Hint:It is bountiful, multivalent and nonmetallic. Under ordinary conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8.Essential sulfur is a splendid yellow, glasslike strong at room temperature.

Complete answer:
Amorphous sulphur - This is the extinguished result of liquid sulphur $( > {160^\circ }C)$ . Its structure changes from an underlying plastic structure slowly to a lustrous structure, consequently its different names of plastic, polished or glassy sulphur . It contains a perplexing combination of catena-sulfur structures blended in with cyclic-structures.
Crystex is a notable business allotrope of sulphur which is framed when liquid sulphur is extinguished above $( > {160^\circ }C)$ . It is likewise called χ-sulphur. It contains an intricate combination of catena-sulphur structures blended in with cyclic-structures. Consequently, choice C is the right answer.The activity of mineral acids on arrangements of thio-sulphates and polythionates, the oxidation of hydrogen sulfide by sulfurous corrosive or concentrated sulphuric corrosive, the oxidation of hydrogen sulfide or metallic sulfides by nitric corrosive or incandescent light, and the deficient ignition of sulfur mixes, for example, hydrogen sulfide or carbon disulphide, all yield a portion of this sparingly dissolvable sulfur.

Note:
Sulphur normally along with some sulphur dissolvable in carbon disulphide, by numerous responses where sulfur is liberated. The moderate decay of sulfur chloride or bromide by water, which may require a few days for consummation, gives a truly steady type of insoluble sulfur.