Skip to main content

Some of the Expected Thoretical Questions from Spectroscopy-II

 Q 1: Explain the effect of conjugation, hydrogen bonding and steric factor on vibrational frequency?

Q 2: Application of Far, Near and Mid-IR spectroscopy?

Q 3: Application of NMR Spetcroscopy?

Q 4: Applications of Mass Spectrometry or its advantages over other spectroscopic techniques?

Q 5: Why Carbon NMR is less sensitive than proton NMR or disadvantages of Carbon NMR over proton NMR

Q 6: Advantages of FT-NMR over CW-NMR or difference between FT-NMR and CW -NMR

Q 7: Short Notes on Following:

a. McLafferty rearrangement

b. Nitrogen rule.

c. EI (Electron Impact Ionization)

d. CI (Chemical Ionization)

e. FAB (Fast Atom Bombardment)

f. Metastable peak

g. Base Peak

h. DEPT

i. HSQC

j. HMBC

k. INADEQUATE

l. Instrumentation of Mass spectrometry

m. Proton decoupled Carbon NMR or Noise decoupled carbon NMR

n. Off-resonance proton decoupled Carbon NMR

o. Fourier Transform Carbon NMR OR Pulsed NMR 

p. Nuclear Overhauser Effect (NOE)

q. NOESY

r. Chemical shift

s. Instrumentation of NMR

t. Relaxation Processs (both Spin-spin and spin -lattice relaxation)

u. Magnetic Anisotropy (for alkenes, alkynes, aromatic compounds and aldehydes with diagrams)

v. Mechanism of spin-spin interaction or splitting of signals

w. Coupling constant and factors affecting it

x. Long range coupling

y. Simplification of complex spectra (High Field strength, Double irradiation or spin-spin decoupling, Use of Shift Reagents)

z. alpha-Cleavage

aa. β-Cleavage

 

 

 Get the Best Price at IndiaMART for:


Mono Cartons - https://m.indiamart.com/impcat/mono-cartons.html?utm_source=GrowYourkids-il5kh&utm_medium=affiliate&utm_campaign=0624&utm_content=14

Labels:

Comments

Post a Comment

Popular posts from this blog

Flame Emission Spectrometry

In flame Emission Spectrometry, the combustion flame not only frees the atoms but it also supplies the energy necessary to move the electrons of the free atoms from ground state to excited state.  The energy which is emitted by the excited atoms when returning to the ground state provides the basis for analytical determination in Flame Emission Spectrometry. Applications of Atomic Emission Spectrometry: 1. Food Industry: for detection of calcium and iron in beer . 2. Biological/Medical Applications: For determination of Na, K, Ca and Mg in body fluids and other biological samples. 3. For determination of Alkali and Alkaline Earth Metals in plant Materials, Chemicals, Cements, Oceanography and Ceramic Materials. Get best price at India Mart for spiral diaries: Spiral Diaries - https://m.indiamart.com/impcat/spiral-diaries.html?utm_source=GrowYourkids-il5kh&utm_medium=affiliate&utm_campaign=0624&utm_content=4
Post a Comment
Read more

Renewable sources of energy

  Renewable sources of energy   are the sustainable energy sources because the se   are not depleted with usage as they can be replenished either naturally or manually within the short time scale and hence can be used again and again. Advantages/Benefits of Renewable sources of energy ü  Ensure energy Security ü  R educ tion in   greenhouse gas emissions, ü  Help to combat   the change s in   climat ic conditions   T ypes of   Renewable sources of energy 1. Solar Energy Solar energy   is one of the most abundant and widely used renewable source s of energy which can be used as follows: i.  Either directly as heat for solar heater for boiling water/preparing food etc. ii.  Or converted   to electricity using Photovoltaic (PV) Solar Panels   which is then used as energy source for diverse purposes. Photovoltaic (PV) Solar Panels : These are the panels prepared using semiconductor materials (e.g., silicon) ...
Post a Comment
Read more

Atomic Absorption Spectrometry

  Atomic Absorption Spectrometry is an absorption spectroscopic technique in which radiation of a particular frequency from a source is absorbed by non-excited neutral gaseous atoms  generated in an atomizer in their ground state. The light is absorbed in the UV-visible region and makes transitions to higher electronic energy levels. The amount  of light absorbed is quantified and this amount of absorption helps in determining the analyte concentration. (It follows Beer's Law) The concentration is measured by drawing a calibration curve  after calibrating instrument with a  standard of known concentration. Factors affecting  the amount of light absorbed Length of path transversed Concentration of absorbing atoms in the vapour state. The diagrammatic representation of Atomic Absorption Spectrometer are shown in the below diagram:  Components Used in Atomic Absorbance Spectrometer: 1. Hollow Cathode Lamp: Acts as source of radiation  It is a sha...
Post a Comment
Read more