Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point?

Question

Dr. Abubacker · Accepted Answer

[Solution from source] Metallic solids reflect visible light (lustre), have high melting points and their conductivity falls as temperature rises because lattice vibrations scatter the free electrons. Covalent and ionic solids are poor conductors whose conductivity, if any, increases with temperature. Answer (2).

Q. Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has high melting point?

Explanation

Reviewed by Dr. Abubacker

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