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Question

Assertion :KCl and NH4Cl cannot be used in salt bridge of a cell containing Ag+,Hg2+2 and Tl+ ions. Reason: Cell will be destroyed due to precipitation of metal chlorides.
  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
  3. Assertion is correct but Reason is incorrect
  4. Assertion is incorrect but Reason is correct

A
Assertion is correct but Reason is incorrect
B
Assertion is incorrect but Reason is correct
C
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
D
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Solution
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KCl and NH4Cl are not used in salt bridge in a cell containing Ag+,Hg2+andTl+ because they for insoluble metal chloride salts and metal salts get precipitated and cell will be destroyed.

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