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H2O is dipolar, whereas BeF2 is not. It is because

1. the electronegativity of F is greater than that of O
2. H2O involves hydrogen bonding whereas BeF2 is a discrete molecule
3. H2O is linear and BeF2 is angular
4. H2O is angular and BeF2 is linear

Correct answer: H2O is angular and BeF2 is linear

Solution

H2O is angular due to its bent molecular geometry, resulting in a net dipole moment. BeF2, being linear, has dipoles that cancel out, making it nonpolar.

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