What is the difference between crystalline and an amorphous solid? A crystalline solid

A. has cubic structure while amorphous solid has a hexagonal structure
B. has a regularly-repeating pattern while an amorphous solid has not
C. is white while amorphous solid is yellow
D. is always hard while amorphous solid is always soft
E. melts on heating while an amorphous solid sublimate on heating.

Correct Answer:

Option B – has a regularly-repeating pattern while an amorphous solid has not