BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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H-F
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H-Cl
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H-Br
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H-I
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Detailed explanation-1: -The above discussion suggests that the highest electronegative difference is in the HF molecule, which is 1.78. Therefore the bond between H-F is most polar.
Detailed explanation-2: -The electronegativity of fluorine is more than hydrogen. So, the fluorine atom will exert a greater pull on the electrons than the hydrogen atom. Hence, the H-F bond is polar.
Detailed explanation-3: -Answer and Explanation: The polarity of a bond is directly proportional to the electronegativity difference between two bonded atoms. As the electronegativity difference between H and F in H-F is higher, therefore, the H-F bond is more polar.
Detailed explanation-4: -Since HF has greater difference in E.N. than HCl, therefore, HF is more polar than HCl. It is also proved by their ionic character since HF is 43% ionic and HCl is 17% ionic.
Detailed explanation-5: -HF is the most polar because F is the most electronegative. HF>HCl>HBr>HI.