Physical Spectroscopy
20 questions in this chapter.
Study loop for Physical Spectroscopy
1. Practise the PYQsPrevious-year questions, with answers
Physical Spectroscopy – General
ABC26PH0764 · The carbon-oxygen bond in an organic compound absorbs electromagnetic radiation of frequency 6 × 1013 Hz. This frequency corresponds to the… · 2001-2022
ABC26PH0487 · A plot of osmotic pressure against concentration (gL-1) of a polymer is constructed. The slope of the plot · 2005-2021
ABC26PH0765 · The correct order of the fundamental vibrational frequencies of the following diatomic molecules is · 2001-2022
ABC26PH0488 · Out of the following, the one which is not an excitation source for IR spectrometer is · 2005-2021
ABC26PH0766 · For H2 molecule, the fundamental vibrational frequency (nu e) in wavenumbers can be taken as 4400 cm-1. The zero-point energy of the… · 2001-2022 self-practice
ABC26PH0489 · The zero-point energy of the vibration of 35Cl2 mimicking a harmonic oscillator with a force constant k = 2293.8 N m-1 is · 2005-2021
ABC26PH0490 · The molecular active in rotational microwave, infrared absorption as well as rotational Raman spectra is: · 2005-2021
ABC26PH0768 · The forces constant for H35Cl and D35Cl are the same and both can be considered as harmonic oscillators. H35Cl has a fundamental… · 2001-2022 self-practice
ABC26PH0494 · The anharmonicity constant (cm-1) of the diatomic molecule is: · 2005-2021
ABC26PH0496 · The rotational Raman spectrum of 19F2 shows a series of Stokes lines at 19230.769 cm-1, 19227.238 cm-1 and 19223.707 cm-1. The rotational… · 2005-2021 self-practice
ABC26PH0497 · The most populated rotational state for HCl (B = 8.5 cm-1) at 300 K is: · 2005-2021
ABC26PH0498 · The ratio of life times of two states that gives rise to line widths of 1.0 cm-1 and 0.2 cm-1 respectively is: · 2005-2021
ABC26PH0499 · The region of electromagnetic spectrum employed in the electron spin resonance (ESR) spectroscopy is: · 2005-2021
ABC26PH0502 · The frequency of radiation (in cm-1 units) required to rotationally excite the molecule from J = 0 to J = 1 state is · 2005-2021
ABC26PH0503 · The bond that gives the most intense band in the infrared spectrum for its stretching vibrations is · 2005-2021 self-practice
ABC26PH0507 · The number of IR active vibrational normal modes of CO2 is ____ · 2005-2021 self-practice
ABC26PH0509 · For a diatomic vibrating rotor, in vibrational level v = 3 and rotational level J, the sum of the rotational and vibrational energies is… · 2005-2021
ABC26PH0511 · The frequency (in cm-1, rounded off to two decimal places) for pure rotational line in the spectrum of NO molecule due to change in the… · 2005-2021 self-practice
ABC26PH0512 · Assuming no interaction between vibrational and rotational energy levels in HF, the frequency (in cm-1, rounded off to the nearest integer)… · 2005-2021 self-practice