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  1. The molecule which has the highest percentage of ionic character among the following is

    2. A.

     HI
    B.

     HF
    C.

     HCI
    D.

     HBr

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    Answer : Option B

    Explanation :

    HF has the highest percentage of ionic character because F has the greatest electronegativity. F, Cl, I, and Br are all in the same group so that means their electronegativity (and thus percentage of ionic character) decreases as they go down the group in the periodic table.

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