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Questions and Answers
Which of the following best describes volatile oils?
Which of the following best describes volatile oils?
- Fixed oils that do not evaporate at ordinary temperature
- Greasy substances that are used for therapeutic activity
- Complex liquid mixtures that easily evaporate when exposed to air (correct)
- Non-volatile substances with varying chemical composition
What is the main difference between volatile and fixed oils?
What is the main difference between volatile and fixed oils?
- Volatile oils have varying chemical composition, while fixed oils do not
- Volatile oils easily evaporate, while fixed oils do not (correct)
- Volatile oils are used for therapeutic activity, while fixed oils are not
- Volatile oils are greasy, while fixed oils are non-greasy
Which of the following is a physical property of essential oils?
Which of the following is a physical property of essential oils?
- Rancidity upon exposure to O2
- Resinify
- Non-greasy (correct)
- Oxidation by air
Which of the following is a characteristic of fixed oils?
Which of the following is a characteristic of fixed oils?
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What is the process of volatile oils becoming rancid upon exposure to O2 called?
What is the process of volatile oils becoming rancid upon exposure to O2 called?
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