Which of the following statement(s) is(are) true for an IR-active bond?

Question

Quizplus · Accepted Answer

An IR-active bond requires a change in bond dipole moment during the vibration. A symmetrical bond (A) will not normally result in a net change in dipole moment during vibration, so it is not IR-active. A change in bond length (B) or bond angle (C) will change the distribution of charge in the molecule, but this is not sufficient to make the bond IR-active. Only a change in bond dipole moment will absorb IR radiation.

Which of the Following Statement(s) Is(are) True for an IR-Active