The solid that is very hard, electrically nonconducting, and has a high melting point is to be determined. Concept Introduction: The crystal system is classified into various types: ionic, covalent, metallic, and molecular. A covalent solid is very hard, a poor conductor, and has a high melting point. The type of crystal in which the solid is hard, brittle, and nonconducting in nature is known as ionic solid. These have usually high melting points. These have dispersion forces and columbic interactions The type of crystal in which the solid is soft and a poor conductor is known as molecular solid. It conducts electricity in an aqueous solution. These have van der waal forces and hydrogen bonding. The type of crystal in which the solid is very hard and a poor conductor is known as covalent solid. It does not conduct electricity in the solid state as well as in the aqueous solution.

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Chapter 11, Problem 60QP

Interpretation Introduction

Interpretation:

The solid that is very hard, electrically nonconducting, and has a high melting point is to be determined.

Concept Introduction:

The crystal system is classified into various types: ionic, covalent, metallic, and molecular. A covalent solid is very hard, a poor conductor, and has a high melting point.

The type of crystal in which the solid is hard, brittle, and nonconducting in nature is known as ionic solid. These have usually high melting points. These have dispersion forces and columbic interactions

The type of crystal in which the solid is soft and a poor conductor is known as molecular solid. It conducts electricity in an aqueous solution. These have van der waal forces and hydrogen bonding.

The type of crystal in which the solid is very hard and a poor conductor is known as covalent solid. It does not conduct electricity in the solid state as well as in the aqueous solution.

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