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AfilCa [17]
3 years ago
13

If a chemist wants to do a presumptive test on an unknown substance for the presence of cocaine, which test reagent should they

use?
Medicine
1 answer:
marysya [2.9K]3 years ago
6 0
Marquis reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of formaldehyde and concentrated sulfuric acid, which is dripped onto the substance being tested.
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These also can be described as depression, dementia, and coma.

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To learn more about Mental status

Visit: brainly.com/question/14488105?

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