72. Competition can exist between Substitution and Elimination reactions dependi

Question

72. Competition can exist between Substitution and Elimination reactions depending on the reaction
conditions including the strength of nucleophile or base present as well as the nature of the solvent.
T/F

73. Match the following X-axis labels typically found with the following approaches to identifying
organic compounds.
delta(ppm) wavelength (nm) m/z wavenumber (cm^-1)

NMR UV-Vis spectroscopy Mass spectrometry IR Spectroscopy

74. Mass spectrometry is used to determine the molecular weight and formula of organic compounds
as well as certain structural features
T/F

75. IR Spectroscopy is used to determine the kinds of functional groups on organic compounds
T/F

76. UV-Vis Spectroscopy is used to obtain information about compounds with conjugated double bonds
T/F

77. NMR is used to identify the structure of the carbon and hydrogen framework of an organic
compound
T/F

78. In some forms of mass spectrometry, a radical cation can be formed that can fragment the
compound to give a characteristic fingerprint used to deduce the chemical structure.
T/F

79. In UV-Vis spectroscopy, the excitation of an electron using a particular wavelength of photon will
result in transition of the electron to a higher energy state perceived as absorption of that wavelength of
light.
T/F

80. Molecules with longer conjugation lengths will generally have longer wavelengths of absorption.
T/F

81. In IR spectroscopy, different stretching frequencies can be associated with different types of bonds
T/F

Please explain if it's false

Explanation / Answer

All the statements are true.

All the statements regarding spectroscopy and other related topics are definitely right.

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