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Q.
Litmus is obtained from :
BHUBHU 2003
Solution:
Lichens are composite or dual organism which are formed by a fungus partner and an algal partner. Litmus is used as pH indicator and can be extracted from lichen Rocellatinctoria. Rocellamonotagnei and Lasalliapostulata. Cladoniacrispata is a edible lichen.