IGNOU BCHET 141 2026 - What are the characteristic stretching frequencies for

Question

What are the characteristic stretching frequencies for the following:

10 Jan 2026

Answer :

Word Count : 135

The characteristic stretching frequencies in infrared (IR) spectroscopy are specific to functional groups and are widely used in analytical chemistry for compound identification. For carboxylic acids (–COOH), the O–H stretching vibration appears broadly around 2500–3300 cm⁻¹ due to hydrogen bonding, and the

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