Pesticides Multiple Choice Questions
1. Household Pesticide sprays are
a. Finit (flit)
b. Finit and Baygon
c. Finit, baygon, mosquito coils and cakes
d. DDT
2. Agricultural chemical denote
a. Pesticides
b. Pesticides and fertilizers
c. Fertilizers and growth regulators
d. Pesticides, fertilizers and growth regulators
3. Growth regulators produce
a. Stimulation of growth
b. Retardation of growth
c. Some cause stimulation while others bring about retardation
d. Shedding of leaves
4. Loss of agricultural productivity due to pests and diseasesis
a. 1%
b. 30%
c. 5%
d. 15%
5. Carbamates include
a. Fungicides, herbicides and insecticides
b. Insecticides only
c. Herbicides, insecticides and nematicides
d. Insecticides, nematicides and rodenticides
6. The first organic pesticide to be used commercially was
a. Bordeaux mixture
b. Burgandy mixture
c. DDT
d. 2 . 4 – D
7. Bordeaux mixture is
a. Organochlorine
b. Antibiotic
c. Organophosphate
d. Inorganic fungicide
8. The most famous pesticide of world is
a. BHC
b. DDT
c. Baygon
d. Flit
9. In India, the most, commonly used pesticide BHC is
a. Carbamate
b. Triazine
c. Organochlorine
d. Antibiotic
10. The pesticide used in foundations of buildings for preventing termite attack is
a. DDT
b. BHC
c. Endrin
d. Aldrin
11. The chemical present in Temik is
a. Malathion
b. Propoxur
c. Carbofuran
d. Aldicarb
12. The chemical present in flit (finit) is
a. Malathion
b. DDT
c. BHC
d. Aldicarb
13. The number of organophosphates synthesized is
a. 1000
b. 100
c. 10,000
d. 100,000
14. The mode of action of insecticides is through the attack on
a. Respiratory system
b. Nervous system
c. Muscular system
d. Both a and b
15. The common mode of action of herbicides is
a. Blocking of xylem channels
(R) Blocking of phloem channels
c. Blocking of photosystem II
d. Blocking of photosystem I
16. One of earliest pesticides employed by humans was
a. Nicotine
b. Margosa (Neem) leaves
c. Pyrethrum
d. DDT
17. An example of pesticide treadmill is
a. Forty times increase in requirement for cotton
b. Development of mosquito resistance to DDT, BHC, malathion and fenitrothion
c. Decreasing use of pesticides due to introduction of biological control
d. Decreasing use of pesticides due to decrease in the population of pests
18. DDT concentration increases in the human body because it is soluble in
a. Water
b. Vitamins
c. Fat
d. Protein
19. Pest is
a. Organism feeding on and damaging others
b. Furgal pathogen attacking plants and animals
c. Bacterial pathogen attacking plants and animals
d. Viral pathogen attacking organisms
20. DDT and 2, 4-D were introduced
a. Towards end of World War II
b. Towards beginning of World War II
c. During World War I
d. Just after thc World War I
21. Bordeaux mixture is named after
a. Scientist
b. Chemical composition
c. Country
d. University
22. Insecticides kill
a. Harmful insects
b. Both harmful and useful insects
c. Specific insects
d. Only plant pests
23. Which is organochlorine?
a. Malathion
b. Pararhion
c. Aldicarh
d. DDT
24. Which one is an organophosphate?
a. BHC
b. Aldrin
c. Fenitrothion
d. Endosulphan
25. A carbamate pesticide is
a. Propoxur
b. Simazine
c. Atrazine
d. Tetraethyl pyrophosphate
26. Urea derivate pesticides belong to the category of
a. Organochlorines
( B)Organophosphares
c. Carbamates
d. Triazines
27. Carbamates employed as insecticide are
a. Phenylcarbamates
b. Thiocarbamates
c. Propoxur
d. Dithiocarbamates
28. Carbamates used as fungicides are
a. Thiocarbamates
b. Dithiocarbamates
c. Carbofuran
d. Carbofuran and Aldicarb
29. The pesticides having very low biodegradation and strong affinity for fatty tissues are
a. Organochlorines
b. Organophosphates
c. Triazines
d. Pyrethroids
30. Pesticide ingredient methyl isocyanate which killed thousands in Bhopal gas tragedy is intermediate of
a. Mustard gas
b. Nitrous acid
c. Carbaryl
d. Carbon tetrachloride
31. The most common pesticide used in India is
a. DDT
b. Endrin
c. BHC
d. Baygon
32. Pesticides comprise
a. Herbicides and insecticides
b. Insecticides
c. Insecticides, nematicides and rodenticides
d. Fungicides, herbicides, insecticides, nematicides and rodenticides.
33. Herbicide carbamates are
a. Dithiocarbamates
b. Thiocarbamates
c. Phenyl carbamates
d. Both b and c
34. Household pesticides consist of
a. Finit, Baygon, Mosquito repellent cakes and coils
b. Finit and Baygon
c. Finit/Flit
d. DDT
35. DDT is
a. Carbamate
b. Organophosphare
c. Organochlorine
d. Triazine
36. First commercial pesticide was
a. Burgandy mixture
b. Bordeaux mixture
c. DDT
d. 2 . 4 – D
37. Mode of pesticide action is similar in
a. DDT and parathion
b. Organochlorines and organophosphates
c. Organochlorines and carbamates
d. Organophosphates and carbamates
38. BHC is
a. Benzene hexachloride
b. Benzene heptachloride
c. Benzene hydrochloride
d. Bromice herbicide
39. Herbicides prevent
a. Transpiration
b. Water absorption
c. Translocation of salts
d. Photolysis of water
40. Pesticides generally attack
a. Muscular system
b. Respiratory system
c. Nervous system
d. Circulatory system
41. Pests resistant to insecticides have
a. Enzyrnes for metabolising toxins
b. Ability to store toxin in fat
c. Less permeable cuticles
d. All the above
42. Most effective pesticides are
a. Carbamates
b. Organochlorines
c. Organophosphates
d. All the above
43. DDT content in Indian population has touched
a. 1 – 12 ppm
b. 11 – 30 ppm
c. 25 – 50 ppm
d. 48 – 98 ppm
44. Which one is not matched?
a. Organochlorine – DDT
b. Pyrethroid – Atrazine
c. Organophosphate – Malathion
d. Carbamate – Carbofuran
45. Pesticides with very low biodegradation but strong affinity for fatty tissues are
a. Organochlorines
b. Organophosphates
c. Pyrethroids
d. Triazines
46. Bordeaux mixture was formulated by
a. Leeuwenhoek
b. Tillet
c. De Bary
d. Millardet
47. Baygon contains
a. Malathion
b. Carbofuran
c. Propoxur
d. Aldicarb
48. Which ingredient killed hundreds of people
in Bhopal gas tragedy ?
a. Nitrous acid
b. Mustard gas
c. Carbon tetrachioride
d. Methyl iscoyanate
49. DDT is
a. Biodegradable
b. Non-biodegradahle
c. Antibiotic
d. Growth regulator
50. Which is a fungicide?
a. 2 . 4 – D
b. DDT
c. Bordeaux mixture
d. BHC