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a) Explain Spin-Spin splitting .Write the splitting patternin the NMR spectrum of CH2Cl - CH2—

01.

0) Explain the various modes of vibrations possible 1௦ 1120. Which of them are IR active? Give
reasons.
c) A solution shows a transmittance of 20 % when taken in a cell of 2.5cm thickness.Calculate

its concentration if the molar absorption coefficient is 12000 dm’mol! (4+3+3) 0२

a) What is Chemical Shift? Explain Shielding and Deshielding

b) Give a neat labelled sketch of UV-Visible Spectrometer.

(6+4)

a) Explain the Construction and Working of Lithium ion cell

b) Explain with a suitable example, the variation of EMF of a cell with temperature.

c) Derive Nernst equation for electrode potential.

(5+2+3) OR

a) Potential of H2 electrode set up in an acid solution of unknown strength is 0.295 volts at 25%
when coupled with SHE.Find the pH of the solution.
b) What do you mean by potentiometric titrations? Explain the principle of Redox titration

by potentiometric method.

c) Write the electrode reaction and expression for electrode potential of the following
electrodes.

i) Metal- Metal ion electrode ii) Gas electrode

iii) Redox electrode (2+5+3)

a) What is thermal analysis? List two techniques of it. Compare their principles.
b) Explain the principle, instrumentation and application of HPLC. (5+5)
OR
a) Differentiate between DTA thermogram and TGA thermogram graphically. Give one important
application of each type.
b) State the Principle, Instrumentation and Applications of GC. (5+5)
a) What is Silicon rubber?How it is prepared? List two important applications.
b) Write notes on fullerenes.
€) What are carbon nanotubes? How are they classified? State their two applications. (4+3+3)
OR

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