Question

Assertion :If standard reduction potential for the reaction $A{g}^{+}+e^{-}\to Ag$ is 0.80 volt, then for the reaction $2A{g}^{+}+2e^{-}\to 2Ag$.It will be 1.60 volt. Reason: If concentration of $A{g}^{+}$ ions is doubled , the standard electrode potential is also doubled.

• 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. Both Assertion and Reason are incorrect

Answer 1

The correct option is D Both Assertion and Reason are incorrect

If standard reduction potential for the reaction $A{g}^{+}+e^{-}\to Ag$ is 0.80 volt, then for the reaction $2A{g}^{+}+2e^{-}\to 2Ag$, it will also be 0.80 volt.

If the concentration of $A{g}^{+}$ ions is doubled, the standard electrode potential remains unchanged. The standard reduction potential of an electrode has a fixed value is not affected by concentration or stoichiometry.

Both Assertion and Reason are incorrect.