Which of the following drug does not give pink colour with ruthenium red
A. Agar
B. Guar gum
C. Pectin
D. Isabgol
Answer: Option B
Related Questions on Pharmacognosy
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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