Solubility of Drugs Presentation by Mahewash A.Pathan
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Questions and Answers

What is the concentration of a substance that dissolves in a given volume of solvent to form a homogenous solution?

  • Saturated solution
  • Supersaturated solution
  • Solubility (correct)
  • Solvent concentration
  • In a solution, what component is present in less amount compared to the solvent?

  • Solution
  • Saturated solution
  • Solute (correct)
  • Solvent
  • What type of interaction occurs between polar solvents like water and ethanol?

  • High dielectric constant
  • H-bond formation (correct)
  • Van der Waal's forces
  • Dipole interactions
  • Which type of solution contains more dissolved solute than it would normally contain?

    <p>Supersaturated solution</p> Signup and view all the answers

    What expression is used to describe the parts of solvent required for one part of solute in very soluble solutions?

    <p>$10000$</p> Signup and view all the answers

    What type of forces are responsible for the solubility of non-polar solutes like fats and oils?

    <p>$CCL_4$ interactions</p> Signup and view all the answers

    What is the Hildebrand solubility parameter formula?

    <p>δ = √△Hv - RT/Vm</p> Signup and view all the answers

    What does a positive solvation energy indicate?

    <p>Endothermic dissolution</p> Signup and view all the answers

    Which factor does NOT influence solubility?

    <p>pH</p> Signup and view all the answers

    What is Henry's law related to in terms of solubility?

    <p>Solubility of gases in liquids</p> Signup and view all the answers

    Which type of liquids are completely miscible?

    <p>Water + ethanol</p> Signup and view all the answers

    What does the Hansen solubility parameter δt represent?

    <p>Interaction of a solute with the solvent</p> Signup and view all the answers

    What does Raoult's Law state?

    <p>The partial pressure of each component in a solution is equal to the mole fraction of the component.</p> Signup and view all the answers

    In ideal solutions, what is true about their behavior?

    <p>They obey Raoult's Law at all solute concentrations.</p> Signup and view all the answers

    What type of solutions exhibit negative deviation from Raoult's Law?

    <p>Non-ideal solutions</p> Signup and view all the answers

    What characterizes minimum boiling azeotropes?

    <p>+ve deviation from Raoult's Law</p> Signup and view all the answers

    What is the Critical Solution Temperature (CST) related to?

    <p>Nernst's Distribution Law</p> Signup and view all the answers

    According to Nernst's Distribution Law, what does the partition coefficient (K) represent?

    <p>Constant value for distribution between two immiscible solvents</p> Signup and view all the answers

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