AP BIOLOGY

BIOCHEMISTRY

POLAR AND NONPOLAR MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following molecule contains a nonpolar bonds?
A
fluorine gas (F₂)
B
hydrogen chloride (HCl)
C
nitrogen monoxide (NO)
D
potassium Iodide (KI)
Explanation: 

Detailed explanation-1: -Fluorine (F2) is a non-polar molecule. It consists of a single non-polar F-F bond due to an electronegativity difference of 0 units between the bonded atoms. The electronic charge is evenly distributed over the molecule due to no electronegativity difference between the same atoms.

Detailed explanation-2: -When electrons are shared equally, they spend the same amount of time on both atoms that form the bond, that is why the fluorine molecule, or F2 is a non-polar molecule.

Detailed explanation-3: -Answer and Explanation: This is a diatomic fluorine molecule. Two fluorine atoms share one valence electron pair, so there is a single covalent bond. The bond is not polar because the atoms are from the same element.

Detailed explanation-4: -F2 is non polar because both the bonding atoms are same thus there is no electronegativity difference between the atoms. Thus the electron pair will lie exactly in the middle of the two atoms thus there is no generation of poles.

There is 1 question to complete.