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  1. The temperature produced by oxy-hydrogen flame is about

    2. A.

     1800°C
    B.

     2100°C
    C.

     2400°C
    D.

     3200°C

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    Answer : Option C

    Explanation :

    The temperature produced by oxy-hydrogen flame is about 2400°C
    This gaseous mixture is used for torches to process refractory materials and was the first gaseous mixture used for welding.

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