Which of the following is a polar molecule?

Practice MCQ for SSC, UPSC, RRB Exams

A. CO₂ A.
B. H₂O B.
C. O₂ C.
D. Cl₂ D.

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

A polar molecule has a uneven distribution of electron density, resulting in a positive and negative pole. In H₂O, the oxygen atom is more electronegative than hydrogen atoms, causing the electrons to be pulled closer to the oxygen, creating a partial negative charge on the oxygen and a partial positive charge on the hydrogens. This uneven distribution of charge makes H₂O a polar molecule.

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