Brownish film formed on iron when left the open in open is called
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    General Science

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    251.

    Brownish film formed on iron when left the open in open is called?

    • Dust

    • Shovel

    • Spade

    • Rust

    D.

    Rust

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    252.

    Who discovered Insulin?

    • Sir Alexander Fleming

    • Frederick Banting

    • James Watt

    • Sir F.G. Hopkins

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