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Question

The gas used in the welding and cutting of metals is :

A
ethane
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B
ethene
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C
ethyne
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D
propene
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Solution

The correct option is C ethyne
Ethyne is the third hottest natural chemical flame.It is supplied by industrial gases industry for welding and cutting due to high temperature of the flame,combustion of acetylene with oxygen produces a flame over 3600K.It is the hottest burning common fuel gas.

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