A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?

A mixture of pure oxygen and acetylene is burnt for welding. Can you explain why a mixture of acetylene and air is not used?

(a) An organic compound X of molecular formula C_(2)H_(4)O_(2) gives brisk effervescence with sodium hydrogencartbonate. Give the name and formula of X. (b) A mixture of ethyne (acetylene) and oxygen is burnt for welding . Can you tell why a mixtrue of ethyne and air is not used (c ) Name a chemical rection which is characteristic of unsatureated hydrocarbons (like alkneses and alkynes).

Air is a mixture of

Air is a mixture of

The mixture covalence of oxygen is