Properties of Covalent Network Solids
Which of the following sets of physical properties is most characteristic of a network covalent solid?
A
Very high melting point, extreme hardness, and poor electrical conductivity
B
Intermediate melting point, moderate hardness, and high electrical conductivity in the molten state
C
Low melting point, high electrical conductivity, and malleability in solid form
D
Bright metallic luster, high ductility, and excellent electrical conductivity in the solid state
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