One of the synthetic auxin is:
IAA
GA
IBA
NAA
The term auxin is applied to the indole -3-acetic acid (IAA) and to other natural and synthetic compounds having certain growth regulating properties. NAA (Naphthalene Acetic Acid) and 2-4-D (2-4 dichlorophenoxy acetic acid) are synthetic auxins.
Option 1)
IAA
Incorrect Option
Option 2)
GA
Incorrect Option
Option 3)
IBA
Incorrect Option
Option 4)
NAA
Correct Option