If You Needed to Detect Substance Use Over a Month

question 66

Multiple Choice

If you needed to detect substance use over a month after it had occurred, probably ____ would be most helpful.

• A) urine screens
• B) hair analysis
• C) blood tests
• D) saliva analysis

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Definitions:

Synthetic Steps

The individual stages or reactions conducted in the laboratory to synthesize a desired chemical compound.

Reaction Product

The substance(s) formed as a result of a chemical reaction between reactants.

Lucas Reagent

A solution of zinc chloride in concentrated hydrochloric acid used to classify alcohols of low molecular weight.

Trans-4-methylcyclohexanol

A chemical compound featuring a cyclohexane ring with a methyl group and an alcohol group in a trans configuration.