Master of Science II (Agrochemicals and Pest Management)
Examination: Oct Nov 2016 Semester IV (CGPM)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR SP
29
Tuesday
22/11/2016
02.30 PM
To
05.00 PM
Manufacture of
Agrochemicals
C
XV
Instructions: All sections are compulsory.
Question 1 should be answered by choosing the correct answer.
Attempt any two questions from section II and two questions from
section III
All questions carry equal marks.
Total Marks: 70
SECTION 1
Q.1 Choose the correct answer (one mark each) 14
Agrograde sulphur is used as
Herbicide Fungicide
Growth retardant Growth promoter
The acute toxicity of dimethoate for rat is
320 to 500 mg/kg 365 to 540 mg/kg
60 to 120 mg/kg 30 to 45 mg/kg
Distillation is a process in which components are separated from the
mixture.
Solid Gaseous
Volatile Water
Distribution coefficient becomes equal to distribution ratio when there is
No association No dissociation
No polymerization All of these
Continuous counter current extraction is applicable when
Solute has slow distribution
coefficient
Solute has high distribution
coefficient
Solute is volatile Solute is non-volatile
A generalized fragment usually an ion, produced by a disconnection is
Synthon Synthetic equivalent
Reagent Target molecule
In absorption tower packing the broken rock is generally not used due to
Easy availability Low cost
Great weight Unusual size and shape
For drying of milk and milk products dryers are used
Spray Turbo
Tray Conveyor
Page 1 of 2
plays an important role in wage and salary administration.
Labour union Public union
Employer-employee union Trade union u
10) The reaction in which only one set of stereoisomers is formed
predominantly is called reaction
Stereospecific Stereoselective
Stichiometric None of these
11) In triple effect evaporator highest temperature is maintain in
evaporator
First Second
Third Both first and second
12) Carbaryl is synthesized form methyl isocyanate and
1 Naphthol Methyl amine
Methyl alcohol Dimethyl amine
13) Diel's-Alder reaction is used to synthesize of the following?
Maneb 4 D
Captan Endosulphan
14) Trade name of phosphamidon is
Rogar Sevin
Dimecron Dithane
SECTION II
Q.2 Explain in brief counter current extraction.
Describe working of compartment tray dryer.
07
07
Q.3 Describe R and D laboratory specifications.
Which factors are responsible for setting up a research laboratory?
07
07
Q.4 What is retrosynthetic approach? Explain it w.r.t. butylated hydroxyl toluene.
What is mean by synthon? Explain it with two examples.
07
07
SECTION III
Q.5 Describe the chemical reactions and flow sheet diagram for dimethoate.
Why is batch inspection necessary?
Write note on SSI.
05
05
04
Q.6 Explain importance and various kinds of first aids in case of accidental hazards.
Write note on ISI specifications.
Describe different types of filters
05
05
04
Q.7 Write the principle of centrifuge.
Explain the use of fractional distillation.
Write note on HRD
05
05
04