a mixture of ethyne and oxygen is burnt for welding. in your opinion why can 't we use a mixture of ethyne and air for this purpose?
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air consist of diffrnt gases which may due to combustion form diffrnt products.
nd it does not support combustion,so we use oxygen.
nd it does not support combustion,so we use oxygen.
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When a mixture of oxygen and ethyne is burnt, it burns completely producing a blue flame. This blue flame is extremely hot which produced a very high temperature which is used for welding metals. But the mixture of ethyne and air is not used for welding purposes because burning of ethyne in air produces a sooty flame, which is not enough to melt metals for welding.
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