Master of Science I (Agrochemical and Pest Management)
Examination: Oct Nov 2016 Semester II (Old CGPA)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SP
14
Thursday
17/11/2016
10.30 AM
to
01.00 PM
Chemistry of Pesticides and
Their Formulations II
C
V
Instructions

All questions carry equal marks.
All Sections are compulsory.
Attempt any two questions from Section II and III
Q. No. 1 should be answered by choosing the correct alternatives
Total Marks:70
SECTION I
Q.1 Select most correct alternative from the following (each carry 1 marks) 14
Triphenyltin acetate is prepared by reacting three molecules of phenyl
magnesium bromide and
SnCl4 ZnCl2
CCl4 MgCl2
ii) Thallium sulphate is used as
Rodenticide Herbicide
Growth promoter Acardicide
iii) Bordeaux mixture is used to protect plant
Fungal attack Rodent attack
Insect attack None of these
iv) Organomercurial compounds are having activity.
Insecticidal Bactericidal and fungicidal
Only fungicidal Only Bactericidal
Zinc phosphide is used o kill the
Insect Fungi
Rodent Herbs
vi) Aldicarb is type of insecticide.
Furyl carbamate Organophosphorus
Oxime carbamate Organochlorine
vii) Carbamate pesticides act as inhibitor of
Respiratory system Circulatory system
Cholinesterase enzyme Nerve signal transmission
viii) Maneb is obtained by reaction between ethylenediamine and
Carbon disulphide Sodium sulphide
Potassium sulphide Carbon dioxide
ix) Catechol when treated with isopropyl chloride in presence of base it forms

Carbofuran Aldicarb
Baygon Carbaryl
Page 2 of 2
Pentachlorobenzene on nitration
Pentachloronitrobenzene Pentachlroaminobenzene
Chloronitrobenzene Nitrobenzene
xi) Hydrazine compounds which are used as pesticides contain
functional group.
-NH2
NH2-NH2
xii) Trifluralin is used to control
Fungi Weeds in cotton
Rodents All of these
xiii) Tenuron is derivative of
Urea Thiourea
Thiocyanate None of these
xiv) Sodium chlorate is used
Rodenticide Acaricide
Fungicide Herbicide
SECTION II
Attempt any two questions from this section.
Q.2 Write synthesis and uses of Tenuron and Methiuron. 07
Give an account of amines as pesticides. 07
Q.3 Describe the role of zinc oxide and zinc phosphide as pest control agent. 07
Describe use of computers in formulation. 07
Q.4 Writ synthesis, reactions and applications of maneb and zineb. 07
Explain structure activity relationship of carbamates. 07
SECTION III
Attempt any two questions from this section.
Q.5 Explain the role of arsenic compounds as pesticides. 05
Describe synthesis and uses of carbofuran. 05
Write uses of mercaptans. 04
Q.6 Write synthesis and uses of MBC. 05
Describe uses of various copper preparations. 05
Write synthesis and uses of propanil. 04
Q.7 Explain role of surfactants and wetting agents in pesticide applications. 05
Describe uses of azo compounds. 05
Write synthesis and application of baygon. 04