Chemistry · Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half-cell and cell reactions
Assertion In electrochemical cell, we can not use KCl in the salt bridge if anod
Assertion In electrochemical cell, we can not use KCl in the salt bridge if anodic or cathodic compartment consists of \( \mathrm{Ag}^{+} \) or \( P b^{2+} \) ion. Reason Salt bridge is employed to maintain the electrical neutrality and to minimize the liquid-liquid junction potential.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
- C. Assertion is correct but Reason is incorrect
- D. Assertion is incorrect but Reason is correct
Step-by-step solution
Assertion is correct because Cl- from KCl would precipitate Ag+ or Pb2+. Reason correctly describes the general functions of a salt bridge but does not explain the specific incompatibility with Ag+ or Pb2+. Thus both statements are true, but the reason does not explain the assertion.
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