M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Agrochemicals and Pest Management
MANUFACTURE OF AGROCHEMICALS
Time: 2½ Hours Max. Marks: 70
Instructions: All sections are compulsory.
Attempt any two questions from section-II.
Attempt any two questions from section-III.
All questions carry equal marks.
SECTION I
Q.1 Rewrite the sentences by choosing correct answer from given alternatives: 14
Centrifugation is used for separation of
Liquid from solid Solid from solid
Gas from gas Liquid from liquid
The process of drying is carried out at temperature of water.
Freezing point Below boiling point
Just above boiling point At boiling point
Two solvents used in solvent extraction should be
Miscible Immiscible
Partially miscible None of these
The performance of an evaporator is evaluated in terms of
Economy Capacity
Efficiency Capacity Economy
During the assessment of the purchase order, the copy of order is send to the
store
To make the funds available for purchase of goods
To confirm that goods arrive in satisfactory condition
To assure that goods are coming
All of these
Imidacloprid is used as
Herbicide Fungicide
Neonicotinoid insecticide Rodenticide
Ionizing radiations are used for treatment of
Fracture Asthama
Cancer Dermatitis
Which of the following is not used as fungicide?
Carbaryl Metalaxyl
Thiophenate methyl Chlorothalonil
Synthon is a Species.
Charged Neutral
Charged as well as neutral None of these
10) Asthma is inflammatory disease of
Heart Lungs
Head Eyes
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SLR-VA-22
11) Chlorothalonil is used as
Herbicide Insecticide
Fungicide Rodenticide
12) Multiple effect evaporator is commonly used in operations.
Small scale Large scale
Medium scale None of these
13) Maneb is type of pesticide.
Organochlorine Organophosphorous
Carbamate Botanical
14) cost includes cost of instructions and testing during various
stages of manufacture.
Failure Optimizing
Prevention Appraisal
SECTION II
Q.2 Write synthesis, mode of action, environmental fate and applications of
thiamethoxam.
Write synthesis and unit process of captan.
07
07
Q.3 Describe batch and contaminates crystallizers.
Write synthesis, properties, uses, mode of action and environmental fate of
thiophenate methyl.
07
07
Q.4 Define disconnection. Explain different types of disconnections.
Discuss the functions of General Manager in an industry.
07
07
SECTION III
Q.5 Describe handling of hazardous chemicals and pesticides. 05
Describe importance of various kinds of first aids. 05
Write note on spray dryer.
04
Q.6 Explain gas absorption in towers. 05
Describe training methods of R and D. 05
Write manufacture and uses of agro grade sulphur.
04
Q.7 Describe packed columns for distillation. 05
Define synthon, synthetic equivalent, FGI and Target molecule. 05
Explain ISI and ASTM specifications.