The sharp melting point of crystalline solids compared to amorphous solids is due to

Options

A. a regular arrangement of constituent partticles observed over a short distance in the crystal lattice
B. a regaular arrangment of constituent particles observed over a long distance in the crystal lattivce
C. same arrangement fo constituent particles in different directions
D. different arrangment of consittuent particles in different directions

Answer

B

Explanation

Crystalline solid has regular arrangement of consitiuent partices observed over a long distance in the crystal lattce Due to this regular arrangement ctystalline solid have sharp melting point .