Molecular Spectroscopy
66 questions in this chapter, page 2 of 2.
Study loop for Molecular Spectroscopy
1. Practise the PYQsPrevious-year questions, with answers
Rotational
ABC26PH1093 · The microwave spectrum of a molecule yields three rotational constants. The molecule is · JUNE 2011
ABC26PH1101 · For a diatomic molecule AB, the energy for the rotational transition from J = 0 to J = 1 state is 3.9 cm-1. The energy for the rotational… · JUNE 2012
ABC26PH1117 · The spectroscopic technique, by which the ground state dissociation energies of diatomic molecules can be estimated, is · JUNE 2015
ABC26PH0111 · The molecule with the smalllest rotational constant (in the microwave spectrum) among the following is · DEC 2015
ABC26PH1119 · The molecule with the smallest rotational constant (in the microwave spectrum) among the following is · DEC 2015
ABC26PH1120 · The spectroscopic technique that can distinguish unambiguously between trans-1,2-dichloroethylene and cis-1,2-dichloroethylene without any… · DEC 2015
ABC26PH0118 · The Berge-Sponer plot between Delta Gv+1/2=(varepsilon v+1- varepsilon v) and (v+1) for CO ia a straight line with slope of -14 cm-1 and… · JUNE 2019
ABC26PH1145 · In the pure rotational microwave spectrum of a XY molecule, the adjacent lines are separated by 4 cm-1. If the molecule is irradiated by a… · DEC 2019
Vibrational
ABC26PH0108 · The vibrational energy levels, v''=0 and v'=1 of a diatomic molecule are separated by 2143 cm-1. Its anharmonicity omega e xe is 14 cm-1… · DEC 2011
ABC26PH1103 · The following data were obtained from the vibrational fine structure in the vibronic spectrum of a diatomic molecule: omega e = 512 cm-1… · JUNE 2012
ABC26PH1105 · The vibrational frequency and anharmonicity constant of an alkali halide are 300 cm-1 and 0.0025 respectively. The positions (in cm-1) of… · DEC 2012
ABC26PH1112 · Bond lengths of homonuclear diatomic molecules can be determined with the help of both · DEC 2014
ABC26PH1113 · If the component of the orbital angular momentum along the molecular axis of a heteronuclear diatomic molecule is non-zero, the… · DEC 2014
ABC26PH1143 · The Berge-Sponer plot between Delta Gv+1/2= (varepsilon v+1- varepsilon v) and v+1 for CO in a straight line with slope of -14 cm-1 and… · JUNE 2019 self-practice
ABC26PH1147 · The vibrational transition energies of a diatomic molecule corresponding to v = 1 ← v = 0 and v = 2 ← v = 1 are 2143.1 cm-1 and 2116.1… · DEC 2019
ABC26PH1149 · The correct statement from the following set (i) to (iv) is (i) if q is the displacement from equilibrium for harmonic motion, the… · JUNE 2021