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Question

Usnic acid is an antibiotic obtained from ?

A
Fungi
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B
Bacteria
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C
Lichen
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D
Algae
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Solution

The correct option is C Lichen
Usnic acid is a yellowish crystalline compound which is present in many lichens and is used as an antibiotic. It was isolated by a German scientist W.Knop.
So, the correct option is 'Lichens'.

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