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  1. The most important ore of lead is

  2. A.

     Galena

    B.

     Magnetite

    C.

     Pyrolusite

    D.

     Siderite

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    Answer : Option A

    Explanation :

    Lead ore is most commonly found as lead sulphide (PbS), galena, a heavy, shiny grey metallic ore with a conspicuous cubic cleavage, but locally pyromorphite, lead chlorophosphate (Pb5(PO4)3Cl), was worked on Green Hill, near Charterhouse and on Blagdon Hill.


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