Spectroscopy - GATE Chemistry MCQ
20 Questions MCQ Test GATE Chemistry Mock Test Series - Spectroscopy
The rotational constant and the fundamental frequency of HBr are respectively, 20cm-1 and 4000cm-1. The corresponding values for DBR approximately are
Vibrations of diatomic molecules are usually modelled by a harmonic potential. If the potential is given by x2 the correct statement is
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The infrared spectrum of HCl gas shows an absorption band centred at 2700 cm–1. The zero point energy of HCl molecule under harmonic oscillator approximation is
The correct intensity pattern (M : M + 2 : M : 4) for the molecule CH2BrCl is
In ESR spectrum of CD3 radical molecule total number of line and intensity pattern is
In the given compound of phosphorus
the total number of signal in 31P NMR in (a + b + c + d) is __________
The following data wire obtained from the vibrational fine structure in the vibronic spectrum of a diatomic molecule|
Where ωe is the energy associated with the natural frequency of vibration and xe is the anharmonicity constant. The dissociation energy (De) of the molecule is
If the leading an harmonic correction to the energy of nth vibrational level of a diatomic molecule is 
The total number of energy levels possible is approximately
The correct structure of DPPH (ESR reference) and hyperfine line with intensi by pattern in benzene solution is
The correct mass fragment of m/z 84 and 88 for below molecule is/are
On the basis of Frank-condon principle the correct vibrational transition with intensity is/are
In 57Fe Mossbauer experiment source of 25.5 kev is moved to wards absorber at a velocity of 5.5 mms-1. The shift in frequency of the source for this sample is ____MHz
In the complex ion 
The structural information in ESR spectrum is given below
(a) The two Co (III) atoms may be connected by an bridge
(b) The Co (III) and Co (IV) may be linked by a peroxy bridge
(c) There may be two equivalent cobalt atoms the unpaired electron is undergoing equal interaction with both cobalt atoms.
Thus the actual structure of cobalt complex combination of a and c. So total number of line in ESR spectrum in the above information of (a + b + c) is ____________
The total number of line in the ESR spectrum of above complex (theoretical + experimental) _____________
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18 docs|37 tests
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18 docs|37 tests
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