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25 May, 11:11

Which is the most polar bond?

a. H-Se

b. P-Br

c. N-I

d. No right answer.

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Answers (1)
  1. 25 May, 11:32
    0
    The answer to your question is: b. P - Br

    Explanation:

    Difference of electronegativities from the periodic table. The one with the highest electronegativity will be the most polar.

    a.

    H = 2.2

    Se = 2.55

    Electronegativity = 2.55 - 2.2 = 0.35

    b.

    P = 2.19

    Br = 2.96

    Electronegativity = 2.96 - 2.19 = 0.77

    c.

    N = 3.04

    I = 2.66

    Electronegativity = 3.04 - 2.66 = 0.38
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