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    <pre style="white-space:pre-line"><code>5. The Halogens and the Noble Gases  eLearn.Punjab

      Chemical Reactions

Fluorides of xenon can be reduced with hydrogen at 400Â°C, giving xenon and

hydrofluoric acid. XeF2 +H2 ï£§ï£§â†’ Xe+2HF

                     XeF4 +2H2 ï£§ï£§â†’ Xe+4HF

                     XeF6 +3H2 ï£§ï£§â†’ Xe+6HF

Xenon tetra-fluoride is a good fluorinating agent and can be used to prepare metal
fluorides as follows:

                  XeF4 +2Hg ï£§ï£§â†’ Xe+2HgF2

Reaction occurs with explosion when XeF4 is brought in contact with liquid
 ammonia.

               3XeF4 +4NH3 ï£§ï£§â†’3Xe+12HF+2N2

      Hydrolysis of XeF6 with small amount of water gives XeOF4

                      XeF6 +H2O ï£§ï£§â†’ XeOF4 +2HF

5.7.4 Xenon Oxyfluorides

Xenon oxytetrafluoride, XeOF4 is also formed by a rapid reaction of XeF6
with silica (quartz).

              2XeF6 +SiO2 ï£§ï£§â†’ 2XeOF4 +SiF4

XeOF4 is a colourless volatile liquid. It can be kept
in nickel vessel.It reacts with water to give XeO3.

           XeOF4 +2H2O ï£§ï£§â†’XeO3 +4HF

  Xenon oxydifluoride, XeOF2 is obtained when xenon
  reacts with oxygen difluoride in an electric discharge.

                Xe+F2O ï£§ï£§â†’ XeOF2

                                           25</code></pre>
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