Which of the following is an amorphous solid ?
(a) Graphiter (C) (b) Quartz glass (SiO2)
(c) Chrome alum (d) Silicon carbide (SiC)
(B) Quartz glass (SiO2) is an amorphous solid due to its short range order of constituent particles.
Note Quartz is a crystalline solid while quartz glass is an amorphous solid.