Which of the following molecules is non-polar? MCQ with Answer and Explanation

Which of the following molecules is non-polar?
A. NH₃
B. H₂O
C. CO₂
D. HCl
Answer: Option C
Solution (By JKExamLibrary)
CO₂ is a linear molecule (O=C=O). Although the C=O bonds are polar, the molecule is symmetric, and the dipole moments of the two bonds are equal and opposite, canceling each other out. Thus, the net dipole moment is zero, making it non-polar. HCl, H₂O, and NH₃ are polar.

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