Solvent Extraction: Definition and Principle
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Questions and Answers

What is the principle behind solvent extraction?

  • Not yet discovered
  • Extremely complex
  • Moderately difficult
  • Extremely basic (correct)

    • What is one of the main applications of solvent extraction?

  • Separating gases from liquids
  • Separating solids from liquids
  • Separating acids from bases
  • Separating two different mixtures from one and another (correct)

    • What is the benefit of using solvent extraction?

  • It is very helpful in daily life (correct)
  • It is only used in research
  • It is an expensive method
  • It is a slow process

    • What is the result of solvent extraction?

    <p>Forming two layers of solution</p> Signup and view all the answers

    What is the importance of solvent extraction?

    <p>It is an important technique in chemical analysis</p> Signup and view all the answers

    What is the purpose of solvent extraction?

    <p>To separate a solute from a solution</p> Signup and view all the answers

    What is the principle behind solvent extraction?

    <p>The distribution and partition law</p> Signup and view all the answers

    Who invented the technique of solvent extraction?

    <p>Franz Ritter Von Soxhlet</p> Signup and view all the answers

    What is the name of the law that states a solute will distribute itself between two immiscible liquids in a constant ratio of concentration?

    <p>The distribution and partition law</p> Signup and view all the answers

    What is another name for solvent extraction?

    <p>Liquid-liquid extraction</p> Signup and view all the answers

    In which industries is solvent extraction commonly used?

    <p>Food, pharmaceutical, petrochemical, ore processing and wastage management</p> Signup and view all the answers

    What is the main purpose of solvent extraction in the food industry?

    <p>To extract oil from seeds and nuts</p> Signup and view all the answers

    Why is benzoic acid insoluble in water?

    <p>Because it is soluble in diethyl ether</p> Signup and view all the answers

    What is the role of 1 molar sodium hydroxide in the procedure?

    <p>To react with benzoic acid to form sodium benzoate</p> Signup and view all the answers

    What is the purpose of mixing the contents of the separatory funnel for 30 seconds?

    <p>To react sodium hydroxide with benzoic acid</p> Signup and view all the answers

    What is the result of adding 30 milliliter of 1 molar sodium hydroxide to the mixture?

    <p>The separation of the organic and aqueous layers</p> Signup and view all the answers

    What is the composition of the top layer after separation?

    <p>Organic layer with 2-methoxycynaphthalene</p> Signup and view all the answers

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