Reticulate xylem vessels showing no reaction for lignin are found in
A. Rhubarb
B. Licorice
C. Rauwolfia
D. Ashwagandha
Answer: Option A
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Tannins show some chemical reaction except:
A. Solution of tannins precipitate gelatin
B. Tannins are precipitated by salt of copper, tin and lead
C. They show colour reaction with iron
D. They react with potassium mercuric iodide
Stychnous nux vomica belongs to family:
A. Scrophulareaceae
B. Liliaceae
C. Apocyanaceae
D. Loganiaceae
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