1.

The sharp melting point of crystalline solids is due to ……..

Answer»

a REGULAR ARRANGEMENT of consitituent particles observed over a short DISTANCE in the crystal lattice .
a regular arrnagment of constituent particlesobserved over a LONG distance in the crystal lattice.
same arrangementof consitituent particles in different direction.
different arrangement of constituent particles in different DIRECTIONS.

Answer :A


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