Indole -3 - acetic acid called as auxin was first isolated from - Vidyadip

Question

Indole $-3$$ -$ acetic acid called as auxin was first isolated from

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Answer

a
(a)Th first naturally accurring auxin i.e., Indole $3-$ acetic acid was isolated by Kogl and Haagen-Smit from human urine.

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