Solder is an alloy of

  • [IIT 1995]
  • A

    $70\%$  lead, $ 30\%$  tin

  • B

    $30\%$  lead, $70\%$  tin

  • C

    $80\%$  lead, $20\%$  tin

  • D

    $90\%$  $Cu, 10\%$  tin

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