Give the Correct Final Term for the Following Expression to Ensure

question 42

Multiple Choice

Give the correct final term for the following expression to ensure that the resulting trinomial is a perfect square trinomial.

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Definitions:

IR Stretch

Infrared stretching refers to the vibration that occurs between atoms within molecules as they absorb infrared radiation, indicative of functional groups in a compound.

IR Bond Stretches

Refers to changes in bond lengths within molecules as observed in infrared spectroscopy, indicative of various functional groups.

Wavenumber

A measure of the frequency of a vibration or a wave, often used in spectroscopy, expressed as the number of waves per unit distance.

IR Absorption

The process where a molecule absorbs infrared light, leading to an increase in vibrational energy levels, used in infrared spectroscopy to identify functional groups within a molecule.