Master of Science II (Analysis Of Pest Management)
Examination: Oct/Nov 2016 Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR SP-
24
Monday
21/11/2016
2:30 P.M
to
5:00 P.M
Analysis of
Agrochemicals
C
XI
Instructions: All Questions are compulsory.
Attempt any two questions from section II
Attempt any two questions from section III.
All questions carry equal marks.
Total Marks:70
SECTION-I
Q.1 Choose the correct alternative given in the bracket. 14
Sulphur dioxide is analysed by method.
IR GC
Polarography Spectrophotometry
In acetone sets of proton are observed.
One Two
Three Six
Mass spectroscopy is technique.
Low pressure High pressure
Low temperature None of these
of following undergoes fragmentation easily by electron beam.
Ketones Ethers
Aromatic compounds Alchols
The radio isotopes have
Same atomic number and same mass number
Same atomic number and different mass number
Different atomic number and same mass number
Different atomic number and different mass number
In paper chromatography paper acts as phase.
Solid Liquid
Stationary Support
Electron donating groups often fluorescence.
Quenching Enhance
Decrease Remains same
HPLC is used in
Pharmaceutical chemistry Biochemical analysis
Chemical analysis All
Page 1 of 2
The RF value depends upon
Solvent system Temperature of environment
Size of the vessel All of these
10) The intensity of fluorescence depends upon of solution.
Volume Pressure
Concentration Polarity
11) The wavelength range for UV region of the electromagnetic radiation is

12) When value of certain molecules shift towards longer wavelength
region, then this phenomenon is known as
Hypsochromic shift Hyperchronic shift
Bathochromic shift Hypochromic shift
13) The absorption of radio frequency radiations by organic molecule is
accompanied by
Electronic level change Vibrational level change
Nuclear spin change Molecular weight change
14) The RF value is always
One More than one
Less than one Zero
SECTION-II
Q.2 Describe principle and procedure of Thin Layer Chromatography. 07
Describe in detail G.M.Counter. 07
Q.3 Draw a schematic diagram of experimental setup of polarography and discuss
its principle and working.
07
Describe principle and instrumentation of UV spectroscopy. 07
Q.4 Describe instrumentation and application of HPLC. 07
Describe the applications of mass spectroscopy. 07
SECTION-III
Q.5 Write applications of fluorescence measurement in pesticide residue analysis. 05
Write note on fingerprint region of IR spectroscopy. 05
Write applications of UV spectroscopy. 04
Q.6 Write a note on neutron activation analysis. 05
Distinguish following pair of compounds by IR spectroscopy.
CH3COOH and CH3CHO
05
Predict the NMR spectra of following.
CH3CH2-OH and CH3COOH
04
Q.7 Explain shielding and deshielding phenomenon with example. 05
Write a note on mass spectra of isotope ion. 05
Describe SO2 analysis. 04