B ൧1102

Chlorination? \ 7

PART ^
Answer all questions, each carries10 marks.
17 a) Discuss the factors affecting chemical shift.

b) Draw the instrumentation of UV-visible spectrometer, explain the various parts. (5)
OR
18 a) How will you distinguish the isomers of CaHio using NMR spectroscopy? (5)
©) Calculate the force constant of HF molecule, if it shows IR absorption at 4138 (5)
സി. Given that atomic masses of hydrogen and fluorine are lu and 190
respectively. What would be the wavenumber if hydrogen atoms are replaced
by deuterium atoms?

19 a) What are the various types of electrodes? (5)

J

b) Calculate the single electrode potentials of 11) electrode at 25 °C and 1 atm (5)

pressure when the solution has pH=0 and pH =14. Based on this which metal

(Al or Fe) can liberate 112 only from acids? Which metal can liberate H2 from

both acid and alkali? Given that E° Fe?*/Fe= - 0.44 ۷ and 80 ۸۱۵۶/۸۱ = - 1.66 V.

OR

20 a) Disuses the variation in emf of a Daniel cell with respect to temperature at (5)

different concentration ratios of 7/72" and Cu**
ஸ்கை 2) ^ cell reaction is एव Calculate the 130611 and 12111111 1 £ಊ೯₹ ೪ಅ೪ಕರ್ಗರ್ಮರ್ವ್‌
of electrons n involved in cell reaction. Given that concentration ratio of A™ to

छाए is 0.1 and the cell shows an emf of 1.13006 V at 30 °C and 1.1.3105 V at

40°C.
0 21 ஐ Make acomparison between GSC and GLC. (5)
b) Discuss the terms i) Carrier gas ii) columns iii) stationary phase iv) detectors (5)
OR
22 a) Write down the experimental procedures for the measurement of conductivity. (4)

b) Describe the terms i) cell constant ii) specific conductance iii) conductivity (6)
cell
23 a) What is poly pyrrole? How will you synthesise it? (6)
०) Which kind of doping is possible ( or n) in poly pyrrole why? Give two (4)
properties and applications.
OR
24 a) What is ABS? What are its important properties and applications? (6)

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