Question

XeF₂ is a colourless ______ and is stable when ______ and ______.

Answer 1

XeF₂ is a colourless solid and is stable when pure and dry.

Explanation:

XeF₂ is a colourless crystalline solid with a melting point of 400 K. It is stable when pure and dry and can be safely stored in a nickel vessel. However, it undergoes slow hydrolysis in the presence of water.