Question

Allethrin is
A) Fertilizer
B) Herbicide
C) Growth hormone
D) Insecticide

Answer 1

Hint: Allethrins are widely used for outdoor mosquito protection in extremely low volume sprays. The substances have low human and bird toxicity.

Complete Answer:
A chemical substance utilised in agriculture is an agrochemical, a reduction of agricultural chemicals. Agrichemicals apply to pesticides, like herbicides, insecticides, herbicides, nematicides and fungicides, in most circumstances. Hormones, Synthetic fertilisers, and other chemical development agents and condensed stocks of crude animal manure can also be included.

Now, let us find the solution from the options-
- A fertiliser is any substance of synthetic origin that is used to provide one or more nutrients to plants necessary for plant growth to the soil or plant tissues. There are many fertiliser sources, both natural and produced by industry. Thus, option A is not the correct option.
- Herbicides are chemicals used to manage unwanted plants and are often widely regarded as weedkillers. Thus, option B is not the correct option
- Growth hormone (GH) is a peptide hormone that promotes growth, cell replication, and cell regeneration in humans and other species, also identified as human growth hormones in human form. Thus, option C is not the correct option.
- Allethrins are a category of synthetic compounds associated with the use of insecticides. They are artificial pyrethroids, a naturally occurring synthetic version of a chemical in the flower of the Chrysanthemum.

Thus, the correct answer is option (D) Insecticide.

Note: Allethrin I and allethrin II vary by featuring a methyl ester and a methyl group on one terminus, respectively. The eight alternative stereoisomers comprise one of these allethrins. Bioallethrin is a partial enantiopure version of allethrin I, consisting of just two stereoisomers at an estimated ratio of 1:1.