2, 4-D or 2,4-Dichlorophenoxyacetic acid is commonly used as a

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Weedicide

Fungicide

Insecticide

Rodenticide

answer is A.

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Detailed Solution

Concept- 2, 4-D is thought to be a weedicide.
2,4-Dichlorophenoxyacetic acid could be a standard general weedkiller utilized within the management of broad-leaved weeds. It's a man-made auxin (plant hormone) and one in all the foremost widely used herbicides within the globe. 2,4-D could be a possible carcinogen per WHO.
2,4-D was one among the ingredients in Agent Orange, a herbicide widely used throughout the war. 2,4-D is primarily used as a selective herbicide that kills several terrestrial and aquatic broadleaf weeds, however not grasses. It acts by mimicking the action of the plant somatotrophic hormone auxin, which finishes up in uncontrolled growth and eventually death in vulnerable plants.
Note that weedicides are harmful to animals and therefore should be used carefully.
Hence, the correct option is 1.

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