Solids are classed as crystalline or amorphous by the nature of their:
AOrder
BColour
CWeight
DOdour
Answer & Solution
Correct answer: A. Order
1. The two classes differ in how their particles are arranged.
2. One has a regular pattern, the other does not.
3. So the basis of classification is the nature of order.
_Source: NCERT Class 12 Chemistry Part I, Chapter 1, The Solid State._
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