Salt bridge has all of the following functions EXCEPT:
Correct answer: D. The positive charge around cathode electrode would prevent the flow of electrons from it
- A. It keeps both solutions seperate
- B. It maintains electrical neutrality in the cell
- C. It maintains flow of electric current through external circuit
- D. The positive charge around cathode electrode would prevent the flow of electrons from it
Explanation
The salt bridge is a type of electrolyte that contains ions that can move freely. The ions in the salt bridge move from one solution to another in order to balance the charges in the two solutions. This movement of ions helps to prevent the build-up of charge around the cathode, which allows the electrons to flow. Without the salt bridge, the positive charge around the cathode would eventually become so strong that it would prevent the electrons from flowing. This would stop the galvanic cell from working.
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