Tag: industrial chemicals and their harmful effects

Questions Related to industrial chemicals and their harmful effects

What type of poison is an ethylene dichloride?

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Stomach poison

  2. Contact poison

  3. Fumigant

  4. Biological control

Show answer
Correct Option: C
Explanation:

Fumigants are volatile and poisonous substances used to kill insects, nematodes that damage stored foods or seeds, human dwellings, clothing, and nursery stock. Ethylene dichloride is used to treat open storage areas and as soil fumigants. It is a low-pressure compound which diffuses more slowly.

Thus, the correct answer is option C.

Endosulfan is a

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Herbicide

  2. Weedicide

  3. Rodenticide

  4. Pesticide

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Correct Option: D

Nobel prize was awarded to Paul Muller, on the discovery of which of the following pesticides?

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Malathion

  2. Parathion

  3. Pyrethrum

  4. DDT

Show answer
Correct Option: D
Explanation:

Paul Muller also known as Pauly Mueller was a Swiss chemist who received the 1948 Nobel prize in Physiology or Medicine for his 1939 discovery of insecticidal qualities and use of DDT in the control of vector diseases, such as malaria and yellow fever.

2, 4 - D is an effective

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Insecticide

  2. Herbicide

  3. Fungicide

  4. Rodenticide

Show answer
Correct Option: B
Explanation:

2,4-D is one of the more useful herbicides. This herbicide is selective for broad leaf weeds. This makes it useful to control such weeds as dandelions, plantains, knotweed, pigweed, and many others. It is a systemic herbicide, which means that it is absorbed into the plant tissue and transported throughout the plant, including into the root system.

Which one is not matched?

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Organochlorine - DDT

  2. Pyrethroid - Atrazine

  3. Organophosphate - Malathion

  4. Carbamate - Carbofuran

Show answer
Correct Option: B
Explanation:

Pyrethroids are a class of synthetic pesticides used widely in home insect - control products, including flea bombs, roach sprays, ant bait, flea - and - tick pet shampoos, and lice shampoos. Examples of pyrethroid pesticides include: cypermethrin, permethrin, deltamethrin, bifenthrin, and cyfluthrin.

Baygon contains 

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Malathion

  2. Propoxur

  3. Carbofuran

  4. Aldicarb

Show answer
Correct Option: B
Explanation:

Propoxur is a nonfood carbamate insecticide, marketed under the registered trademark name 'Baygon'.  It is used to control cockroaches, flies, mosquitoes and lawn and turf insects.

Which of the following pesticides is employed widely in antimalarial programmes?

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Aldrin

  2. Malathion

  3. BHC

  4. None

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Correct Option: B

What is the main problem caused by the use of pesticides?

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Their residues persists in water and other components of the environment.

  2. Mosquitoes have become resistant to DDT.

  3. They kill silkworm.

  4. They deform the gills of some fishes.

Show answer
Correct Option: A
Explanation:
Pesticides are substances or a mixture of substances of chemical or biological origin, used by human society to mitigate or repel pests such as bacteria, nematodes, insects, mites, mollusks, birds, rodents, and other organisms that affect food production or human health. A major problem with the use of pesticide has been that they do not breakdown in the environment, but remain toxic to fish, animals, and humans for many years.
Thus, the correct answer is option A.

The pesticide used in foundations of buildings for preventing termite attack is

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. DDT

  2. BHC

  3. Aldrin

  4. Endosulfan

Show answer
Correct Option: C
Explanation:

Aldrin is a pesticide used to control soil insects such as termites, corn rootworm, wireworms, rice water weevil and grasshoppers. It has been widely used to protect crops such as corn and potatoe and has been effective to protect wooden structures from termites.

Which pesticide is a herbicide?

zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

  1. Malathion

  2. Lindane

  3. BHC

  4. $2, 4$-D

Show answer
Correct Option: D
Explanation:

2,4-D (2,4-Dichlorophenoxyacetic acid) is a systemic herbicide that affects the specifically acts on the dicot weeds. It is used in the crop field of cereals to wipe out the weeds without affecting the monocot cereals. 

A. Malathion is an organophosphate insecticide.
B. Lindane is a hexachlorocyclohexane insecticide.
C. BHC (β-Hexachlorocyclohexane) or lindane is an insecticide.
D. 2,4-D is a herbicide.
Hence, the correct answer is '2,4-D'.