A) Calyx of Cinnamon
B) Brak of Cinchona
C) Red ants
D) Brak of tulsi
Correct Answer: B
Solution :
Quinine \[({{C}_{20}}{{H}_{24}}{{N}_{2}}{{O}_{2}})\] is an alkaloid obtained from Cinchona bark. It suppresses the asexual erythrocytic forms of malarial parasites and has a slight effect on the gametocytes of Plasmodium vivax and P. malariae.
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