Calomel Electrode in Chemistry
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Questions and Answers

What is the role of the calomel electrode in laboratories?

  • Acting as an anode in galvanic cells
  • Measuring the concentration of chloride ions
  • Conducting potentiometric titrations
  • Determining the single electrode potential (correct)

How does the electrode potential of the calomel electrode change with increasing chloride ion concentration?

  • Increases
  • It remains constant
  • Becomes unpredictable
  • Decreases (correct)

What application does the calomel electrode have in pH determination?

  • Determining single electrode potential
  • Conducting potentiometric titrations
  • Serving as a reference electrode with glass electrode (correct)
  • Measuring the concentration of chloride ions

At 298K, what is the electrode potential of the calomel electrode for a saturated KCl concentration?

<p>0.2422 V (D)</p> Signup and view all the answers

Which type of electrode is used in the determination of pH?

<p>Calomel electrode (C)</p> Signup and view all the answers

What is another name for the auto catalytic reduction method of plating?

<p>Electroless plating (C)</p> Signup and view all the answers

Which factor accounts for a lower corrosion rate?

<p>Large anodic area (D)</p> Signup and view all the answers

What is essential in electroless plating?

<p>Reducing agent (B)</p> Signup and view all the answers

What is the E.M.F of the concentration cell at 250 C?

<p>0.1773 V (D)</p> Signup and view all the answers

What is the cathode reaction in the concentration cell?

<p>Ag+ (aq) (10 M) + e- → Ag (s) (C)</p> Signup and view all the answers

What is the construction of a Calomel electrode?

<p>Mercury placed at the bottom of a glass tube with a solution of KCl above it (D)</p> Signup and view all the answers

What is the purpose of a reference electrode in electrochemistry?

<p>To measure the electrode potential of other electrodes (B)</p> Signup and view all the answers

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