(a)
Interpretation:
The vibrations that can be assigned to strong absorption bands and the possible causes of the weak absorptions is to be stated.
Concept introduction:
In
(b)
Interpretation Whether
Concept introduction:
The IR absorption spectroscopy makes use of a mid infrared light that detects the particular types of
(c)
Interpretation:
The number of fundamental vibration modes for
Concept introduction:
It is necessary to alter the dipole moment of the molecule for a compound to be IR active. Some bonds are able to absorb infrared light more than other molecules whereas some bonds don’t absorb the IR radiations at all.
(d)
Interpretation:
The number of fundamental vibrational modes for methane, benzene, toluene, ethylene and carbon tetrachloride is to be stated.
Concept introduction:
The molecular vibrations take place when atoms of a molecule are executing periodic motion while the molecules either have constant translational motion or rotational motion. The fundamental vibration is excited when the molecule absorbs one quantum of energy in the ground state.
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Chapter 16 Solutions
Principles of Instrumental Analysis
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