Question

1) Which solid compound has low melting point and soft?

Answer 1

Answer:

This electrostatic attraction between the two poles (dipoles) is much weaker than ionic or covalent bonding, so molecular solids tend to be softer than ionic crystals and have lower melting points (many will melt at less then 100 C, or 212 F). Most molecular solids are nonpolar.

Answer 2

Answer:

Molecular solids tend to be soft or deformable, have low melting points, and are often sufficiently volatile to sublime directly into the gas phase. This latter property often gives such solids a distinctive odor.