Question:
The sharp melting point of crystalline solids is due to ___________.
(i) a regular arrangement of constituent particles observed over a short
distance in the crystal lattice.
(ii) a regular arrangement of constituent particles observed over a long
distance in the crystal lattice.
(iii) the same arrangement of constituent particles in different directions.
(iv) a different arrangement of constituent particles in different directions.
Solution:
Option (ii) a regular arrangement of constituent particles observed over a long
distance in the crystal lattice is the answer.