Polarity and Structure of NO2

The video explores the polarity of nitrogen dioxide (NO2), highlighting its unique structure with a lone electron on nitrogen. It explains the difference in electronegativity between nitrogen and oxygen, leading to polar bonds. The video visualizes the molecular structure, showing how the lone electron affects the geometry, resulting in a bent shape. This asymmetry, along with electronegativity differences, makes NO2 a polar molecule. The video also discusses resonance and bond angles, concluding that NO2's polarity is due to its molecular geometry and electronegativity differences.

What makes the structure of NO2 unique?

• It has equal electronegativity with oxygen.

• It forms a linear shape.

• It contains a lone electron on nitrogen.

• It has a double bond with nitrogen.

Why does the bond between nitrogen and oxygen in NO2 result in polarity?

• Because nitrogen is more electronegative than oxygen.

• Because oxygen is more electronegative than nitrogen.

• Because they have the same electronegativity.

• Because they form a nonpolar covalent bond.

What is the electronegativity value of nitrogen in NO2?

• 3.04

• 3.60

• 3.44

• 2.98

What is the electronegativity value of oxygen in NO2?

• 3.60

• 2.98

• 3.44

• 3.04

How does the lone electron affect the structure of NO2?

• It causes the oxygens to move closer.

• It has no effect on the structure.

• It pushes the oxygens downward.

• It makes the molecule linear.

What is the bond angle in NO2 due to its bent geometry?

• 120 degrees

• 134.3 degrees

• 180 degrees

• 90 degrees

What is the effect of the lone electron on the molecular geometry of NO2?

• It results in a tetrahedral shape.

• It has no effect on geometry.

• It causes a bent geometry.

• It makes the molecule linear.

What is the main reason for NO2 being a polar molecule?

• Symmetrical shape

• Equal sharing of electrons

• Difference in electronegativity and asymmetry

• Presence of a triple bond

What is the role of resonance in the structure of NO2?

• It stabilizes the molecule.

• It makes the molecule nonpolar.

• It decreases the electronegativity difference.

• It increases the bond angle.

How does the asymmetrical shape of NO2 contribute to its polarity?

• It balances the charge distribution.

• It enhances the electronegativity difference.

• It causes an uneven charge distribution.

• It has no effect on polarity.