Understanding Molecular Polarity

What is the shape of NH3 and how does it affect its polarity?

• Linear, making it nonpolar

• Pyramidal, making it polar

• Tetrahedral, making it nonpolar

• Bent, making it polar

Why is BH3 considered a nonpolar molecule?

• It has a lone pair on the central atom

• The lone pairs on surrounding atoms are unequal

• It has a pyramidal shape

• It has no lone pairs on the central atom and equal distribution of electrons

What makes water a famous polar molecule?

• It has equal sharing of electrons

• It has lone pairs on the central atom

• It has no lone pairs

• It has a linear shape

How does the presence of lone pairs on chlorine in CH3Cl affect its polarity?

• It has no effect on polarity

• It results in a polar molecule due to unequal distribution

• It creates an equal distribution of electrons

• It makes the molecule nonpolar

What is the key factor in determining the polarity of a molecule?

• The molecular weight

• The presence of lone pairs and their distribution

• The color of the molecule

• The number of atoms in the molecule