{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2026-05-25T10:21:57.622Z","dateModified":"2026-05-25T10:21:57.622Z","typicalAgeRange":"11-18","educationalLevel":"GPAT","assesses":"Pharmacy - Introductory Pharmacognosy","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"Introductory Pharmacognosy"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Pharmacy"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":"GPAT"}],"name":"Quiz about Introductory Pharmacognosy","about":{"@type":"Thing","name":"Pharmacy - Introductory Pharmacognosy"},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About Introductory Pharmacognosy","text":"Why does caffeine not give precipitate with the general alkaloidal test}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"Caffeine is a \"Pseudo-alkaloid\" purine; use Murexide test instead."},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

Because it is a purine derivative

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":1,"encodingFormat":"text/markdown","text":"

Because it is an imidazole derivative

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":2,"encodingFormat":"text/markdown","text":"

Because it is an indole derivative

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

Because it is an acridine derivative
\n\n

","comment":{"@type":"Comment","text":"\"\""}}],"acceptedAnswer":{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

Because it is a purine derivative

","comment":{"@type":"Comment","text":"Caffeine is a \"Pseudo-alkaloid\" purine; use Murexide test instead."},"answerExplanation":{"@type":"comment","text":""}}}]}

Why does caffeine not give precipitate with the general alkaloidal test

Show Hint

The Correct Option is A

Solution and Explanation

Top Questions on Introductory Pharmacognosy

Questions Asked in GPAT exam