Question

which of the following compounds can be used as an efficient agent to defoliate broad leaf weeds? a) Isopentyl adenine b) 2,4,5 tricholoroacetic acid c) indole 3 acetic acid d) ethaphon

Answer 1

The answer is ( b ) 2,4,5 trichloroacetic acid......
Hope it helps to uh......
please mark it as brainliest answer...

Answer 2

Ans.

Indole-3-acetic acid (or IAA) is a naturally occurring plant growth regulator that belongs to a class of plant hormones, auxin. Generally, it promotes growth of plants by stimulating cell division. However, at higher concentration auxin promotes defoliation by inducing ethylene production that promotes abscission of plant structures.

Hence, auxin derivatives are used as selective pesticides to kill broad leaf weeds by inducing defoliation. Thus, the correct answer is 'option C). indole-3- acetic acid.'