Organic Spectroscopy - IIT JAM MCQ

In the IR spectrum, carbonyl absorption band for the following compound appears at:

In the IR spectrum of p-nitrophenyl acetate, the carbonyl absorption band appears at:

A triatomic molecule of the type AB₂ shows two IR absorption lines and one IR-Raman line. The structure of the molecule is:

In the IR spectrum, the absorption band due to carbonyl group in phenyl acetate appears at:

In the IR spectrum of p-nitrophenyl, acetate, the carbonyl absorption band appears at:

A compound with molecule formula C₄H₆O₂ shows band at 1170 cm^–1 in IR  spectrum and peaks at 178, 68, 28 and 22 ppm in ¹³CNMR spectrum. The correct structure of the compound is:

The compound that exhibits sharp bands at 3300 and 2150 cm^–1 in the IR spectrum is:

The resonance Raman stretching frequency (ν_o–o, cm^–1) of O₂ is 1580. The ν_o–o for O₂ in bond oxyhemoglobin is close to:

Correctly matched structure and carbonyl stretching frequency set is:

Among the following, the compound that displays an IR band at 2150 cm^–1 is:

The compound which shows IR frequencies at both 3314 and 2126 cm^–1 is:

Match the compound P-S with their carbonyl stretching frequencies (cm^–1) I-VI in IR spectroscopy.

Out of the following, the one which is not an excitation source for IR spectrometer is:

The molecule active in rotation microwave, infrared absorption as well as rotational Raman spectra is:

Match the compounds in List – I with the stretching frequencies (cm^–1) of the principal functional groups given in List – II.

The IR stretching frequencies (cm^–1) for the compound X are as fo llows: 3300-3500 (s, br); 3000 (m); 2225 (s); 1680(s). The correct assignment of the absorption bands is:

Among the compounds given in the option (a) to (d), the one that exhibits a sharp band at around 3300 cm^–1 in the IR spectrum is: