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table below shows the electronegativities of four elements. Which of the following bonds is the most polar?
carbon - hydrogen
carbon - fluorine
fluorine - fluorine
hydrogen - oxygen

table below shows the electronegativities of four elements Which of the following bonds is the most polar carbon hydrogen carbon fluorine fluorine fluorine hyd class=

Respuesta :

 Lets find the electronegativity difference between the bonded atoms;

C-H = 2.6-2.2 = 0.4

C-F = 4.0-2.6  = 1.4

F-F = 4.0-4.0   = 0

H-O = 3.4-2.2  = 1.2

Here the electronegativity difference is highest for C-F bond hence C-F bond is most polar.

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