Extraction Method Quiz

What is the process of separating a substance from a mixture using a solvent?

• condensation

• amalgamation

• fusion

• extraction

Which extraction method involves the use of water and steam to extract essential oils from plants?

• Steam distillation

• Oil infusion

• Fire distillation

• Salt extraction

In liquid-liquid extraction, the solute is transferred from one liquid phase to another. True or False?

• Depends on the temperature

• False

• True

• Partially true

What is the purpose of solid-phase extraction?

• To decrease the stability of compounds in a mixture

• To separate and purify compounds from a mixture for analysis

• To create a chemical reaction

• To increase the concentration of compounds in a mixture

Which extraction method is commonly used in the pharmaceutical industry for the purification of compounds?

• Liquid-solid extraction

• Solid-gas extraction

• Gas-gas extraction

• Liquid-liquid extraction

What is the main advantage of solvent extraction over other methods?

• Faster reaction rates

• Lower cost of equipment

• Higher purity of the extracted compound

• Efficient separation based on solubility

What is the principle behind steam distillation?

• Volatile compounds vaporize at lower temperatures

• Steam causes compounds to solidify

• Non-volatile compounds vaporize at lower temperatures

• Volatile compounds vaporize at higher temperatures

In liquid-liquid extraction, what is the term used for the liquid in which the solute is dissolved initially?

• Organic phase

• Gas phase

• Solid phase

• Feed or Aqueous phase

What type of compounds are typically targeted for extraction using solid-phase extraction?

• Organic compounds

• Inorganic compounds

• Gaseous compounds

• Biological compounds

What are the key factors to consider when choosing a solvent for extraction?

• The taste of the solvent

• The color of the solvent

• All of the above

• The price of the solvent