How Is Boron Nitride Formed

question 136

Multiple Choice

How is boron nitride formed?

• A) Boron is heated gently in ammonia.
• B) Boron is heated to white heat in ammonia.
• C) Boron is heated gently in elemental nitrogen.
• D) Boron is heated to white heat in elemental nitrogen.
• E) None of the above; boron nitride is naturally occuring.

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