14

15

16

17 8

18 a.

19 a.

20

21

22 a.

01000C Y100092001

compositions. carbon = 85 %, hydrogen = 8 %, sulphur = 1%, nitrogen = 2%,
ash = 4 %, latent heat of steam = 587 cal/gm.
Write a note on solid lubricants using suitable examples.
Explain the chemical reactions when soluble soap (sodium salt of a higher fatty
acid) is added to hard water
Explain UASB process for the treatment of waste water
PART ட
Answer all questions. Each question carries 10 Marks

Explain the phenomenon of spin-spin splitting

Predict the number of signals, chemical shift and spin — spin-splitting in the
NMR spectra of 2-bromopropanoic acid (CH3-CHBr-COOH) and ethane (CH3-
பழ.

௦௩
Write a note on various types of electronic transitions
A solution shows a transmittance of 20 % when taken in a cell of 2.5 cm
thickness. Calculate its concentration if the molar absorption coefficient is
12000 ണ്ണ.
What are reference electrodes? Give the electrode representation of standard
hydrogen electrode.
The standard electrode potential of a zinc electrode at 25°C is -0.76 V.
Calculate the electrode potential of zinc electrode when a zinc electrode is
immersed in 0.02 M ZnSO, solution at 25°C assumes complete ionization of
൧൧5൭.
Explain the construction of a glass electrode and write the pH determination of
a solution using glass electrode with a neat labelled sketch.

OR
Explain the construction, working and advantages of ೩ 12-02 fuel cell with ೩
labelled figure.
Discuss the principle, instrumentation and applications of HPLC with the help
of a block diagram.

OR
Explain the principle and instrumentation of DTA.

Describe the differential thermogram of calcium oxalate with a figure.

Page 2 of 3

(3)
(3)

(3)

(4)

(6)

(6)
(4)

(2)

(2)

(6)

(10)

(10)

(6)
(4)