A) Crocus
B) Colchicum
C) Delbergia
D) Chrysanthemum
Correct Answer: B
Solution :
Cholchicin (ah alkaloid) is obtained from Colchicum autumnale. It arrests the cell division at metaphase. Pyrethrum insecticide is obtained from several species of Chrysanthemum. The insecticidal constituents of Pyrethrum (pyrithrin-I and pyrithrin-II) are esters, which yield. Chrysanthemum monocarboxylic acid and Chrysanthemum dicarboxylic acid on cleavage. Saffron is obtained from Crocus sativus. The finest quality of saffron is obtained from the red tips of stigmas. It has a characteristic aromatic odour and a pungent bitter taste. Delbergia is a genus of tropical trees providing a valuable dark timber. Indian rose-wood is obtained from it.
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