IMP Notes UV IR NMR & Mass Spectroscopy 2019.pdf - Spectroscopy IMP Notes By V.M DESAI Spectroscopy Notes by Mr V M DESAI [email protected]

IMP Notes UV IR NMR & Mass Spectroscopy 2019.pdf -...

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Spectroscopy- IMP Notes By V.M. DESAIB.Sc-III Spectroscopy IMP Notes by V. M. DESAI, Asst. Prof. KWC, SangliPage 1 SpectroscopyNotes by Mr. V. M. DESAI [email protected], 9011442624 Question Bank UV-Spectroscopy Q.1) Define the following terms with suitable examples; i) Chromophore Oct-17 ii) Chromogen iii) Auxochrome Oct-17 iv) Bathochromic/Red shift v) Hypsochromic /Blue shift vi) Hyperchromic shift vii) Hypochromic shift Q.2) Explain how UV spectroscopy is used to determine – i) Extent of conjugation Oct.2015 Dec.16 MIMP ii) Study of Geometrical isomers Or MIMP Distinguish between Cis and Trans isomer Oct.2015 Dec.16 iii) Detection of Chromophore iv) Strength of Hydrogen Bond Q.3) State and explain Beer-Lambert’s Law in detail. April-2016 Q.4) Calculate λmax of following structures;
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Spectroscopy- IMP Notes By V.M. DESAIB.Sc-III Spectroscopy IMP Notes by V. M. DESAI, Asst. Prof. KWC, SangliPage 2 IR Spectroscopy Q.5) Explain the fundamental modes of vibrations involved in IR spectroscopy. April-2018Oct.2015 Dec.16 MIMP Q. 6) What is selection rule? Explain IR active and inactive transitions with suitable examples April-2018/2016 IMP Q.7) Explain following factors affecting on carbonyl stretching frequency i) Resonance Effect (Effect of conjugation) ii) Inductive effect iii) Effect of ring size / angle strain iv) Hydrogen bonding Q.8) Write a short note on ‘Functional group and Finger print region’ Oct-17 Q.9) State Hook’s law. Give its mathematical expression. April-2016/17 Q. 10) Compounds having molecular formula [C3H6O] shows absorption band at 1720cm-1and 2720cm-1. Predict the structure of the compound. Oct.2017NMR-SpectroscopyQ.1) Explain magnetic and non-magnetic nuclei with suitable examples. April-2017 Q.2) Draw neat and labeled diagram of NMR- spectrometer. April-2017 Q.3) What is chemical shift? Explain different factors affecting on chemical shift. April-2018 Q.4) Explain shielding and deshielding of proton with examples in PMR spectroscopy. April-2018 Q. Write a short note on ‘Spin spin coupling’ Q. Write a short note on ‘Coupling constant’ Oct-2017 Mass-SpectroscopyQ.1) Explain McLaffert rearrangement with suitable example. April-2018 Q.2) Give brief account for molecular ion and isotopic ion in mass spectroscopy. April-2018 Q.3)Explain applications of Mass spectroscopy. April-2018 Q.4) Draw neat and labeled diagram of Mass spectrometer. April-16 Oct-15 Q.5) Explain application of mass spectroscopy to determine molecular weight of compound April-17 Dec-16
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Spectroscopy- IMP Notes By V.M. DESAIB.Sc-III Spectroscopy IMP Notes by V. M. DESAI, Asst. Prof. KWC, SangliPage 3 Fundamental Modes Of Vibration Q.1) Explain the fundamental modes of vibrations involved in IR spectroscopy. Oct.2015 Dec.16 MIMP Types of Vibrations: Molecular vibrations are due to the stretching and bending motions of certain parts of a molecule.
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