Discussion
Match the following :
| List - I | List - II |
|---|---|
| a. Nux vomica | i. Vitalis test |
| b. Opium | ii. Gold chloride test |
| c. Datura | iii. Mandelin's test |
| d. Aconite | iv. Marqui's test |
Codes : a b c d
Answer: D
The correct matching is a-iii, b-iv, c-i, d-ii. Mandelin's reagent (ammonium vanadate in sulphuric acid) is used for strychnine from Nux vomica. Marquis's reagent (formaldehyde in sulphuric acid) gives a purple colour with opium alkaloids such as morphine. The Vitali test is the test for the tropane alkaloids of Datura. The gold chloride test is used for aconite. Option A gives Marquis to Nux vomica and option B and C each shift at least two pairs wrongly, so option D is the one that matches all four.
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