BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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HCl
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CCl4
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Detailed explanation-1: -HCl is most polar due to high electronegativity of Cl.
Detailed explanation-2: -HCl is polar covalent compound as the chloride ion is more electronegative than hydrogen ion. So chloride ion carries partial negative character while hydrogen carries partial positive character.
Detailed explanation-3: -Fluorine has the highest electronegativity value, therefore, H−F will have the highest polarity.
Detailed explanation-4: -The order of polarity is as follows: HF>HCl>HBr>HI.
Detailed explanation-5: -HF is more polar than HI or HCl. HF forms stronger bond than HI. The extent of the ionic character of a covalent bond depends on polarity of molecule which in turn is proportional to the difference of electronegativity b/w the bonded atoms.