Which of the following molecules is polar?

Question

Quizplus · Accepted Answer

Both molecules are polar. CH₃COOH (which seems to be a misprint but likely refers to a molecule with polar functional groups, possibly meant to represent a carboxylic acid given the "COOH" part) contains polar covalent bonds due to the difference in electronegativity between carbon, hydrogen, and oxygen atoms, especially within the COOH group which is known for its polarity. HCN (hydrogen cyanide) is also polar because of the significant electronegativity difference between hydrogen, carbon, and nitrogen, leading to a dipole moment where the electron density is pulled towards the nitrogen atom.

Which of the Following Molecules Is Polar