Which bond has the greatest ionic character?

H - C l

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H - F

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H - O

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H - N

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Solution

The correct option is B $H - F$
Hydrogen has an electronegativity of 2.1 and Fluorine has electronegativity of 4.0. Subtract the two values and the difference is 1.9.
Ionic bonds have differences of 1.7 or greater.
The electronegativity differences for the other choices are lesser than that of $H - F$ .
$H - F$ has the greatest difference and is the moat ionic of the choices.

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Similar questions

N - F, F - H, C - H

O - H

Question 43

Arrange the following bonds in order of increasing ionic character giving reason.

N - H, F - H, C - H and O - H

C - H < B r - H < N a - I < F - H < L i - C l < K - F

F, O, N, C l

H

4.0, 3.5, 3.0, 3.2

2.1

(X - - - H - X)

S, O, F, C l, N

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