Podcast
Questions and Answers
Which of the following statements about oil is true?
Which of the following statements about oil is true?
- Oil is a single compound with a fixed chemical structure
- Oil is a compound with a specific CAS number
- Oil is a term used to describe hydrophobic materials (correct)
- Oil is always derived from petrochemical sources
What is the main difference between polar oil and nonpolar oil?
What is the main difference between polar oil and nonpolar oil?
- Polar oil is solid, while nonpolar oil is liquid
- Polar oil is hydrophobic, while nonpolar oil is hydrophilic (correct)
- Polar oil is unsaturated, while nonpolar oil is saturated
- Polar oil is derived from petrochemical sources, while nonpolar oil is derived from natural sources
What is the role of oils in cosmetic formulation?
What is the role of oils in cosmetic formulation?
- Oils are used to increase the viscosity of products
- Oils are used as preservatives in cosmetic products
- Oils are used as solvents for water-based ingredients
- Oils are used as vehicles and emollients (correct)
What are silicone fluids classified as?
What are silicone fluids classified as?
Which of the following is NOT a characteristic of oil?
Which of the following is NOT a characteristic of oil?
What type of compounds are included in the term 'oil'?
What type of compounds are included in the term 'oil'?
Which of the following can increase the liquidity of oils?
Which of the following can increase the liquidity of oils?
What are silicone fluids classified as?
What are silicone fluids classified as?