Assertion : Salts like KCl,KNO3 i.e., inert electrolytes are used in salt bridge.
Reason : An inert electrolyte can easily be filled in the U-tube.
Assertion is true but reason is false.
Ions of inert electrolytes are not involved in any electrochemical change until they react chemically with the electrolytes in the two half-cells.
The number of cations transferred = the number of anions transferred