On combution in air Li forms

On combustion in excess air, Li forms :

Amorphous boron on burning in air forms

Amorphous boron on burning in air forms

When boron burns in air it forms:

Ethers in air forms

10ml of mixture containing CO and N_(2) required 7 ml of oxygen to form CO_(2) and NO respectively on combution. Find the volume of N_(2) in the mixture.

Hydrogen burns in air to form ____ .

Amorphous B on heating in air forms