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Related Chapters
- Some basic concepts of Chemistry
- Structure of Atom
- Classification of Elements and Periodicity in Properties
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Answer-
Atomic hydrogen can be prepared by dissociation of a bond of dihydrogen with the help of an electric arc. This release a huge amount of energy around 135 kJ/mol and this energy can be used to generate a high temperature of 4000K, which is desirable for welding and cutting of metals. Therefore, atomic hydrogen or oxy-hydrogen torch are used for welding purpose.