Question

Which of the following is an example of polar molecule ?

• A. H₂O
• B. O₂
• C. H₂
• D. CO₂

Answer 1

Answer: (A)

H₂O

Answer 2

H₂O is a polar molecule because it has a bent shape with a bond angle of approximately 104.5° and oxygen being more electronegative than hydrogen, which creates a dipole moment.

O₂, H₂, and CO₂ are nonpolar; O₂ and H₂ are diatomic molecules with identical atoms, while CO₂ is linear with its bond dipoles canceling out.