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Which one of the following is correct? As the cell discharges electrons would flow from the in the salt bridge A - VCE - SSCE Chemistry - Question 16 - 2012 - Paper 1
Question 16
Which one of the following is correct? As the cell discharges electrons would flow from the in the salt bridge A. zinc electrode to the silver electr... show full transcript
Worked Solution & Example Answer:Which one of the following is correct? As the cell discharges electrons would flow from the in the salt bridge A - VCE - SSCE Chemistry - Question 16 - 2012 - Paper 1
Step 1
electrons would flow from the zinc electrode to the silver electrode.
Answer
During the discharge of a galvanic cell, oxidation occurs at the anode (which is the zinc electrode in this case). This results in the flow of electrons from the anode to the cathode (the silver electrode). Therefore, this part of the question is correct.
In the salt bridge, cations migrate towards the cathode, and anions migrate towards the anode. Since the electrons leave the zinc electrode and flow to the silver electrode, anions must migrate to the Zn2+/Zn half-cell from the salt bridge to maintain charge balance.