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  1. The composition of electrician solder is

    2. A.

     Lead-37%, tin-63%
    B.

     Iron-37%, tin-63%
    C.

     Lead-37%, Steel-63%
    D.

     Steel-37%, copper-63%

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    Answer : Option A

    Explanation :

    The composition of electrician solder is Lead-37%, tin-63%.

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