One of the synthetic auxin is
(a) IAA (b) GA
(c) IBA (d) NAA
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option d is a synthetic auxin
naa
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Among the given options, (d) NAA (Naphthalene Acetic Acid) is an example of synthetic auxin.
Explanation:
- Auxin refers to those natural and synthetic compounds, which contains growth-regulating properties.
- The full form of all the compounds given in the options are as follows:
(a) IAA - Indole-3-acetic acid
(b) GA - Gibberellic acid
(c) IBA - Indole Butyric Acid
(d) NAA - Naphthalene Acetic Acid
- Among the given compounds, Giberrlic acid is not a group of auxin, because it belongs to growth hormone gibberellin.
- Among the other three, IAA and IBA are natural auxin, whereas NAA is synthetic auxin.
- Thus it is inferred that one of the synthetic auxin is (d) NAA.
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