Which of the following bonds is the most pola | vedclass

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(C) The polarity of a bond depends on the difference in electronegativity between the two bonded atoms. Greater the difference in electronegativity,hi

Vedclass · Accepted Answer

$I - F$

Vedclass · Answer

(C) The polarity of a bond depends on the difference in electronegativity between the two bonded atoms. Greater the difference in electronegativity,higher is the polarity of the bond. The electronegativity values for the halogens are: $F = 4.0$,$Cl = 3.0$,$Br = 2.8$,and $I = 2.5$. Calculating the electronegativity difference $(\Delta EN)$: $Cl - F$: $|4.0 - 3.0| = 1.0$ $Br - F$: $|4.0 - 2.8| = 1.2$ $I - F$: $|4.0 - 2.5| = 1.5$ $F - F$: $|4.0 - 4.0| = 0$ Since the difference is maximum for the $I - F$ bond,it is the most polar bond.

Which of the following bonds is the most polar?

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