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Which type of solid structure melts at a definite, sharp melting point?

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in Chemistry – Class 12 by (188k points)
Which type of solid structure melts at a definite, sharp melting point?

(a) All types of solids

(b) No type of solid

(c) Amorphous solids

(d) Crystalline solids

I have been asked this question during an interview.

Query is from Solid State Characteristics in section Solid State of Chemistry – Class 12

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Correct option is (d) Crystalline solids

Easiest explanation: Crystalline solids have a perfectly ordered structure which collapses immediately at a specific temperature. Amorphous solids melt over a range of temperatures, not one specific value.

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