A crystalline solid of unknown origin forms an aqueous solution that conducts an electrical current.The solid has a high melting point and shatters when struck with a hammer.The solid is likely to be
A)a covalent network solid.
B)an ionic solid.
C)a metallic solid.
D)a molecular solid.

Question

Quizplus · Accepted Answer

The fact that the solid forms an aqueous solution that conducts an electrical current suggests that it dissociates into ions in water. This is a characteristic of ionic compounds, making choice B the best option. The high melting point and brittleness also support this conclusion, as these are typical properties of many ionic solids. The other options (covalent network, metallic, and molecular solids) are unlikely based on the given information.

A Crystalline Solid of Unknown Origin Forms an Aqueous Solution