Question

a mixture of oxygen and ethyne is burnt for welding, can you tell why a mixture of ethyne? and air is not used?

Answer 1

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Answer 2

When mixture of oxygen and ethyne is burnt, it gives a very high temperature due to complete combustion and gives clean flame, but when ethyne is burnt with air, it leads to incomplete combustion.Due to it will not give high temperature and give a sooty flame. This is the reason for using oxygen instead of air.