Class 12 Chemistry - Chapter The Solid State NCERT Solutions | Solid A is a very hard electrical insula

Welcome to the NCERT Solutions for Class 12th Chemistry - Chapter The Solid State. This page offers a step-by-step solution to the specific question from Exercise 1, Question 7: solid a is a very hard electrical insulator in sol....
Question 7

Solid A is a very hard electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?

Answer

The solids which are very hard have their atoms bind to each other by covalent forces which are very strong, as a result they have high melting and boiling points and do not conduct heat are called as covalent crystals (crystalline solids). Hence, solid A shows the properties of an covalent crystalline solids.

For example  diamond (C), quartz (SiO2), &  silicon carbide SiC)

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