Question

give the chemical composition present in salt bridge. explain ans. in atleast 10-15 lines.​

Answer 1

Answer:

saturated solution of the KCI NH⁴ NO³ and agar solution

Explanation:

A salt bridge is a device used in an electrochemical cell for connecting its oxidation and reduction half cells wherein a weak electrolyte is used. In other words, a salt bridge is a junction that connects the anodic and cathodic compartments in a cell or electrolytic solution.

The salt bridge usually consists of a strong electrolyte which is further made up of ions. For example, AgNO3, KCl, etc. Salt bridges are generally used in a galvanic cell such as a voltaic cell or Daniel cell. The main function of a salt bridge is to help maintain the electrical neutrality within the internal circuit. It also helps in preventing the cell from taking its reaction to equilibrium. If salt bridges are absent or if they are not used then the reaction will likely continue and the solution in one-half electrodes will gather a negative charge. Similarly, in the other half, electrodes would accumulate a positive charge. This will further result in the stoppage of the reaction and no electricity will be produced.

Salt Bridge Diagram