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Sea is the greatest source of some halog...

Sea is the greatest source of some halogens. Comment.

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Sea water contains chlorides, bromides and iodides of sodium, potassium, magnesium and calcium. NaCl is the most abundant (2.5% by mass) among all of these. Certain forms of marinc life contain iodine in their systems. Various sea weeds, contain upro 0.5% of iodine and chile saltpetre contains upto 0.2% of sodium iodate. NaCl and carnallite, `(KCl*MgCl_(2)*6H_(2)O)` etc., are present in the deposits of dried up seas.
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Knowledge Check

  • Halogens are

    A
    Diatomic
    B
    monoatomic
    C
    Polyatomic
    D
    Triatomic
  • Halogens are

    A
    Gases under ordinary conditions
    B
    Electronegative in nature
    C
    Fuming liquids
    D
    The gases found in amosphere
  • Halogens are

    A
    Inert
    B
    Very reactive
    C
    Slightly reactive
    D
    None
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