Distinguishing between pale catechu and black catechu


Question 1) Give pharmacognostic account of Rauwolfia root.

Question 2) Plant biotechnology is promising source for biomedicines and progress in phytomedicines. Justify.

Question 3) Explain and classify alkaloids. Give function of alkaloids in plants.

Question 4) Explain the procedure and significance of following chemical tests:

a) Vitali-Morin test

b) Murexide test

c) Wagner’s test

d) Libbermann’s test

e) Van-Urk’s reagent.

Question 5) Write brief notes on:

a) Successive solvent extraction

b) Applications of TLC and HPTLC to herbal drugs/products

c) Biosynthesis of tropane alkaloids

d) Preliminary phytochemical screening.

Question 6) Give chemistry and classification of fixed oils with examples.

Question 7) How will you detect adulteration of fixed oils?

Question 8) What are tannins? Distinguish between Pale catechu and Black Catechu.

Question 9) Give a detailed account of Ginkgo-biloba.

Question 10) Write about General features of Umbelliferous drugs. Give chemical constituents and uses of Dill fruit.

Question 11) Write detail account of allergens causing dermatitis.

Question 12) Write brief notes on:

a) Antimicrobial marine drugs

b) Adulterants of clove

c) Role of various plants as pesticides

d) Tulsi.

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Chemistry: Distinguishing between pale catechu and black catechu
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