What is the formula for hexaboron nitride?

-BN
-BN6
-B6N
-BN2

Explanation:

1. Boron nitride is prepared synthetically in lab.

2. When ammonia is treated  with boric acid or boron trioxide boron nitride is prepared.This are the other reaction to produce boron nitride.

3. B  

2

O  

3

+2NH  

3

→2BN+3H  

2

O (T = 900 C)

4. B(OH)  

3

+NH  

3

→BN+3H  

2

O (T = 900 C)

5. B  

2

O  

3

+CO(NH  

2

)  

2

→2BN+CO  

2

+2H  

2

O (T > 1000 C)

6. B  

2

O  

3

+3CaB  

6

+10N  

2

→20BN+3CaO (T > 1500 C)

Properties of Boron nitride :  

1. Boron nitride is  ionic in nature hence it reduces he co valency and electrical conductivity.

2. Hexa-boron nitride is thermally stable.1. Boron nitride is prepared synthetically in lab.

2. When ammonia is treated  with boric acid or boron trioxide boron nitride is prepared.This are the other reaction to produce boron nitride.

3. B  

2

O  

3

+2NH  

3

→2BN+3H  

2

O (T = 900 C)

4. B(OH)  

3

+NH  

3

→BN+3H  

2

O (T = 900 C)

5. B  

2

O  

3

+CO(NH  

2

)  

2

→2BN+CO  

2

+2H  

2

O (T > 1000 C)

6. B  

2

O  

3

+3CaB  

6

+10N  

2

→20BN+3CaO (T > 1500 C)

Properties of Boron nitride :  

1. Boron nitride is  ionic in nature hence it reduces he co valency and electrical conductivity.

2. Hexa-boron nitride is thermally stable.

the answer is d   for sure : )

the correct answer would be d. hope this !