Consider the galvanic cell shown below (the contents of each half-cell are writt

Question

Consider the galvanic cell shown below (the contents of each half-cell are written beneath each compartment): The standard reduction potentials are as follows: Cr^3+(aq) + 3e^_rightarrow Cr(s) epsilon degree = -0.73 V Br_2(aq) + 2e^_rightarrow 2Br^-(aq) epsilon degree = + 1.09 V Which of the following statements about this cell is false? This is a galvanic cell. Electrons flow from the Pt electrode to the Cr electrode. Reduction occurs at the Pt electrode. The cell is not at standard conditions. To complete the circuit, captions migrate into the left half-cell and anions migrate into the right half-cell from the salt bridge.

Explanation / Answer

false statement : reduction occurs at the Pt electrode

explanation :

Pt electronde is on left hand side . so it is oxidation half cell. at oxidation half cell oxidation takes place not reduction. due to this oxidation electrons flow from Pt to Cr above statment is correct.

this is not at standard conditions because concentrations are not 1.00 M

remaining all are correct.

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