CHM391
Question: Which of these is not part of the three regions of infrared?
Answer: close
Question: When a molecule absorbs radiation at the infrared region, it causes the molecule to undergo
Answer: vibrational transitions
Question: When molecules absorb radiation at the infrared region, the energy of the wavelength absorbed causes a vibrational transition if the energy absorbed is equal to the quantized jump in the _________.\n
Answer: internal energy
Question: The measure of the fraction of light radiation that is absorbed by a given\nsample solution is known as ________.
Answer: Absorbance
Question: Typical units of frequency used in IR spectra is
Answer: wave number
Question: The vibrational energy of the atoms or groups of atoms\nwithin the molecule is raised to a higher level on absorption of
Answer: infrared radiation
Question: Molecular transitions occur only at _________wavelengths.
Answer: definite
Question: Which of the following may not occur when a molecule absorbs electromagnetic radiation?
Answer: Gibb\’s free energy
Question: Charge transfer transitions is evident in the _______of metal chelates
Answer: intense colour
Question: Same proportion of incident light is absorbed per unit thickness\nirrespective of its intensity, and that each successive unit layer absorbs the same proportion of light falling on it. This is
Answer: Lambert\’s law
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