Chapter 16, Problem 38E

Interpretation Introduction

Interpretation: The structures of the two forms of the boron nitride BN molecule need to be suggested.

Concept Introduction: The first form of the BN molecule is formed after the reaction of ${\text{BCl}}_{\text{3}}$ and ${\text{NH}}_{\text{3}}$ followed by heating at 750 ^oC in an ammonia atmosphere. The second form is formed when the first form is subjected to the pressure and temperature of 85,000 atm and 1800 ^oC respectively. The first and second forms are in solid form till the temperature is 3000 ^oC.