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Question

Flames of the mixtures _________ and _________ are used for welding.


A

oxynitrogen, oxyacetylene

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B

oxyhydrogen, oxypropylene

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C

oxyhydrogen, oxyacetylene

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D

oxynitrogen, oxypropylene

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Solution

The correct option is C

oxyhydrogen, oxyacetylene


Oxygen is used in forming oxyacetylene flame or oxyhydrogen flame which produces high temperatures needed for various purposes in industries.

The temperature of oxyacetylene flame is about 3000oC and that of oxyhydrogen flame is approximately 2800oC.


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