॥ ॥॥॥ ||| | ஆ 10009

19.

21.

24.

a) 0/೧೩! 15 meant by standard electrode potential ? How would you measure the
single electrode potential of an electrode using a saturated calomel electrode ?

b) Find the single electrode potential for copper metal in contact with
0.1 M Cu?* solution at 298 K. ६? Cu2*/Cu = 0.34 V

©) How is glass electrode constructed 7 What is its use ? (4+2+4)
OR
. a) Write electrode reaction and expression for the electrode potential of following
electrodes :
i) Metal-metal ion electrode
ii) Gas electrode

iii) Metal-metal insoluble salt electrode
iv) Redox electrode.

0) How will you explain the working of 112 - 0, fuel cell ? Draw a neat labelled
diagram of the cell. (4+6)

a) Whatis thermal analysis ? List two techniques of it. Compare their principles.
b) Write the basic components of a gas chromatographic instrument. Draw the
diagram of a gas chromatograph. (6+4)
OR

a) Write the procedure for doing column chromatography.
0) What is HPLC ? Draw a labelled diagram of HPLC instrument. Write its two
important applications. (5+5)

a) What are conducting polymers ? Write the structure of two conducting
polymers.

b) Write a note on structure and applications of fullerene.
c) Write a note on biological nanomaterials. (3+4+3)
OR

a) What are carbon nanotubes ? How are they classified ? State their two
applications.
0) Write the structure and two applications of Kevlar. (6+4)