NURSING EXAM QUESTIONS
TOXICOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A Marquis solution turns purple in the presence of
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Heroin, morphine, opium
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Marijuana
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Cocaine
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MDMA
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Explanation:
Detailed explanation-1: -Marquis reagent is a mixture of methanal (formaldehyde) solution in water with sulphuric acid. Mescaline gives an orange colouration. With morphine, a violet colour is produced. Amphetamines give an orange-red colour and methamphetamine gives an orange colour.
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