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Practical application of complete combustion of Acetylene in presence of pure
               oxygen-
               Oxyacetylene flame used for welding purposes in Acetylene torches.























               Oxy acetylene flame

               Oxy acetylene flame is produced only in presence of pure oxygen as the amount of
               oxygen required is very high.
               Oxy acetylene flame is not produced when combustion takes place in atmospheric
               oxygen, as the percentage of oxygen is very low in air (only 21%).

                       b.  Addition reactions
               Addition reactions occur when an atom is added to a compound that has a double
               or triplebond.
               Unsaturated compounds undergo addition reactions as these compounds are
               hydrocarbons that contain double or triple bonds. ...

               An addition reaction is that in which atoms of an element or a compound get added
               to the carbon atoms of an unsaturated hydrocarbon across theC=C double or C≡C
               triple bond.

               Unsaturated hydrocarbons undergo addition reaction to add atoms to the carbon
               atoms forming double or triple bond, so that they can form the corresponding
               saturated Alkane which is more stable than Alkene or Alkyne.

               Saturated hydrocarbons do not undergo addition reaction because the bond
               between carbon atoms is already a single bond and they are stable.








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