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  1. The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.

    2. A.

     Same as
    B.

     Less than
    C.

     More than
    D.

     None of these

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    Answer : Option B

    Explanation :

    The maximum temperature of Oxy-hydrogen flame is about 2,800 °C.
    The temperature of the oxyacetylene flame 3480 °C.

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