AP BIOLOGY

BIOCHEMISTRY

POLAR AND NONPOLAR MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What makes a molecule nonpolar?
A
When valence electrons are shared equally
B
When valence electrons are not shared equally
C
Both of the previous
Explanation: 

Detailed explanation-1: -Symmetrical molecules are nonpolar. Because nonpolar molecules share their charges evenly, they do not react to electrostatic charges like water does. Covalent molecules made of only one type of atom, like hydrogen gas (H2), are nonpolar because the hydrogen atoms share their electrons equally.

Detailed explanation-2: -The electrons are shared equally because the electronegativity difference between the two atoms is zero.

Detailed explanation-3: -A nonpolar covalent bond is a covalent bond in which the bonding electrons are shared equally between the two atoms. In a nonpolar covalent bond, the distribution of electrical charge is balanced between the two atoms.

Detailed explanation-4: -A covalent bond that has an equal sharing of electrons (part (a) of Figure 4.4. 1) is called a nonpolar covalent bond.

Detailed explanation-5: -Because they have the same electronegativity, they will share their valence electrons equally with each other. This type of a covalent bond where electrons are shared equally between two atoms is called a non-polar covalent bond.

There is 1 question to complete.