Which of the following is not a generally used electrolyte in the salt bridges used to connect the two half-cells of an electrochemical cell?(a) NaCl(b) KNO3(c) KCl(d) ZnSO4This question was posed to me by my college professor while I was bunking the class.My query is from Electrochemical Cells topic in portion Electrochemistry of Chemistry – Class 12

Which of the following is not a generally used electrolyte in the salt

1.	Which of the following is not a generally used electrolyte in the salt bridges used to connect the two half-cells of an electrochemical cell?(a) NaCl(b) KNO3(c) KCl(d) ZnSO4This question was posed to me by my college professor while I was bunking the class.My query is from Electrochemical Cells topic in portion Electrochemistry of Chemistry – Class 12
Answer» The correct choice is (d) ZnSO4 For explanation I would say: A salt bridge is a device used to CONNECT the oxidation and reduction half-cells of a galvanic cell (a type of ELECTROCHEMICAL cell). Strong electrolytes are generally used to make the salt BRIDGES in electrochemical cells. Since ZnSO4 is not a strong ELECTROLYTE, it is not used to make salt bridges.

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