engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Chemical Sciences Structure Determination of Organic Compounds IR Spectroscopy
In IR spectrum, recorded neat, a compound shows a strong and broad band at 3300 cm−1. The band becomes sharp and shifts to 3600 cm−1 when the spectrum is recorded in CCl4 at high dilution. This proves that the compound has
1
OH group, which is involved in intramolecular H-bonding
2
OH group, which is involved in intermolecular H-bonding
3
a terminal alkyne group
4
OH group, present in severely sterically hindered environment