Question

2,4-dichlorophenoxyacetic acid is used as:
A. Fungicide
B. Insecticide
C. Herbicide
D. Moth repellent

Answer 1

We have to know that the chemical formula of 2,4-dichlorophenoxyacetic acid is ${C_8}{H_6}C{l_2}{O_3}$.It appears as white to yellow powder. The molar mass of 2,4-dichlorophenoxyacetic acid is $221.04g/mol$ . It is also known as 2,4-D, hedonal, trinoxol.

Complete step by step answer:
We have to know that 2,4-dichlorophenoxyacetic acid is also known as 2,4-D. is a fundamental herbicide which specifically murders most broadleaf weeds by causing uncontrolled development in them however most grasses, for example, oats, yard turf, and meadow are generally unaffected.2,4-D is an individual from the phenoxy group of herbicides.
We need to remember that the 2,4-D is fabricated from chloroacetic corrosive and 2,4-dichlorophenol, which is itself delivered by chlorination of phenol. On the other hand, it is obtained by the chlorination of phenoxyacetic corrosive. The creation cycles may make a few foreign substances including di-, tri-, and tetrachlorodibenzo-p-dioxin isomers and N-nitrosamines, just as monochlorophenol.
We must know that the 2,4-D acts by impersonating the activity of the plant development hormone auxin, which brings about uncontrolled development and in the long run demise in helpless plants. It is consumed through the leaves and is moved to the meristems of the plant. Uncontrolled, unreasonable development follows, causing stem twist over, leaf shrinking, and possible plant passing. 2,4-D is ordinarily applied as an amine salt, however more strong ester adaptations exist, too.

The use of 2,4-dichlorophenoxyacetic acid is Herbicide.

So, the correct answer is Option C.

Note: We need to know that a wide range of areas utilizes items containing 2,4-D to slaughter weeds and undesirable vegetation. In farming, it was the primary herbicide discovered to be prepared to specifically murdering weeds yet not harvests. 2,4-D is the least expensive path for ranchers to control winter yearly weeds by showering in the fall, regularly at the most minimal suggested rate.