1.

Aure of aoygen and edhyme is burnt for welding, Can you tell whyarida sanure of ethyme and ais is not used?

Answer»

When ethyne is burnt in air incomplete burning takes place and produce sooty flame due to limited supply oxygen present in the air. However, if ethyne is burnt in oxygen, it gives a cleanflame with high temperature (3000°C ) due to complete combustion of ethyne. Hence, This oxy-acetyleneflame is used for welding and it is not possible to attain such a high temperature with air. Due this reason a mixture of ethyne and air is not used for welding.

tnx



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