Please help with option12 B.
Answer says option A.
It is Nawasthi Multiple correct
A salt bridge , in electrochemistry is a laboratory device used to connect the oxidation and reduction half-cells galvanic cell,voltaic cell, a type of electrochemical cell. It maintains electrical neutrality within the internal circuit, preventing the cell from rapidly running its reaction to equilibrium. If no salt bridge were present, the solution in one half cell would accumulate negative charge and the solution in the other half cell would accumulate positive charge as the reaction proceeded, quickly preventing further reaction, and hence production of electricity.