In which of the following molecules is the co | vedclass

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Question

(C) The polarity of a covalent bond depends on the difference in electronegativity between the bonded atoms. As we move down the halogen group $(F > C

Vedclass · Accepted Answer

$HCl$

Vedclass · Answer

(C) The polarity of a covalent bond depends on the difference in electronegativity between the bonded atoms. As we move down the halogen group $(F > Cl > Br > I)$,the electronegativity decreases. Therefore,the electronegativity difference between $H$ and the halogen is greatest for $HCl$ compared to $HBr$ and $HI$. $H_2$ is a non-polar molecule because the electronegativity difference is zero. Thus,the $H-Cl$ bond is the most polar among the given options.

In which of the following molecules is the covalent bond most polar?

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