Question

identify whether each molecule given below is polar or nonpolar. drag the appropriate items to their respective bins. chcl₃ sbr₂ bf₃ brf₃ polar nonpolar

Explanation:

• \(CHCl_{3}\): Carbon is the central atom. Chlorine is more electronegative than hydrogen. The molecule has a tetrahedral - like shape (trigonal - pyramidal due to the difference in substituents). The bond dipoles do not cancel out, so it is polar.
• \(SBr_{2}\): Sulfur is the central atom. It has a bent molecular geometry (due to two lone pairs on sulfur). Bromine is more electronegative than sulfur. The bond dipoles do not cancel, making it polar.
• \(BF_{3}\): Boron is the central atom. It has a trigonal - planar geometry. The bond dipoles (B - F bonds) are symmetrically arranged and cancel each other out, so it is non - polar.
• \(BrF_{3}\): Bromine is the central atom. It has a T - shaped molecular geometry (due to two lone pairs on bromine). The bond dipoles (Br - F bonds) do not cancel, so it is polar.

Answer:

• Polar: \(CHCl_{3}\), \(SBr_{2}\), \(BrF_{3}\)
• Nonpolar: \(BF_{3}\)