. Draw the electron-dot structure for ethyne. A mixture of ethyne and oxygen is burnt for welding

In  your  opinion, why  cannot  we  use  a  mixture  of ethyne  and  air for  this purpose

Best Answer

In pure oxygen, ethyne undergoes complete combustion and high temperature suitable for welding is attained.  Whereas air contains   less percentage/ amount  of oxygen which results in incomplete combustion if  ethyne and the temperature required  for the welding is not attained. Hence we cannot use a mixture of ethyne and air for this purpose.


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