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0000CYT100121902

Describe the construction and working of Li-ion battery. What are the major
advantages of it?
Calculate the EMF of the cell at 25°C:
Al/ Al*(0.1M) ॥ Sn**(0.1M)/ Sn**(0.01M)
‏,و ہ۳" ,۷ 1.66- عررا/۳ م59‎ = 0.15 V

Module-II
Define chemical shift in NMR and explain the factors affecting chemical shift
with examples.
Calculate the force constant of H-F molecule that is showing IR absorption
signal at 4000 ला 1, By what factor do you expect this frequency to shift if
Deuterium is substituted for Hydrogen in this molecule? Given that atomic
masses of H and F are 10 and 19 प, respectively.
How many vibrational modes are possible for the molecules CO, NO, (02 and
H20? Draw the vibrational modes of CO» and H20 and explain their IR active
modes.
Each compound gives only one signal in its 1H-NMR spectrum. Propose a
structural formula for each. a) (8118 and 0) (8180

Module-III
Describe the instrumentation, principle and working of SEM with the help of a
labelled diagram. Give any two applications.
Explain the visualization techniques used in thin layer chromatography.
Describe the principle, instrumentation, procedure and applications of HPLC.
How TGA is used to analyze thermal stability of polymers?

Module-IV
Discuss the conformations in butane by depicting the Newman formula about
C2-C3 bond of all the conformers. Also draw the energy level diagram with
dihedral angle.
How is ABS synthesized? Mention some applications.
Explain the rules for assigning R-S configuration and determine the R-S
configuration of all the asymmetric carbon atoms in the molecule after writing

its Fischer projection formula.

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