Question

Inspite of long range order in the arrangement of particles why are the crystals usually not perfect?​

Answer 1

Answer:

Crystals have long range in the arrangement of particles but usually the crystals are not perfect this is because when crystallisation occurs at a fast rate or moderate rate, the constituent particles may not get sufficient time to arrange themselves in a perfect order.

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Answer 2

Heya!!

Here is your answer -

Crystals have long range in the arrangement of particles but usually the crystals are not perfect this is because when crystallization occurs at a fast rate or moderate rate, the constituent particles may not get sufficient time to arrange themselves in a perfect order.