A Chemist Has a Sample Which Is Known to Be

question 121

Multiple Choice

A chemist has a sample which is known to be a solution. Which of the following might be used to separate the components of the solution?

• A) chromatography
• B) distillation
• C) either a or b
• D) neither a nor b

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Definitions:

Double-Blind

An experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Blood Pressure

The force that circulating blood exerts against the walls of the body's arteries, an essential indicator of cardiovascular health.

Psoriasis

A chronic autoimmune condition that affects the skin, causing red, scaly patches that may be itchy or painful.

Placebo

An inactive substance or treatment that is designed to mimic the experimental treatment but has no therapeutic effect.