1. What is role of Zncl₂ in dry cell

Dry-cell batteries consist of  a zinc chloride paste which allow a dry-cell to conduct the electricity and provide electrical power to various substances. It is  also used to absorb moisture and inhibit corrosion in a cell to provide long life. The low production cost of dry-cell batteries makes them useful. It is used between the space of anode and cathode electrodes in dry cell along with moist paste of ammonium chloride (NH₄Cl) where ZnCl₂ acts as an electrolyte. Secondly, ZnCl₂ provides zinc and chloride ions to complete the complex reaction occurring in the cell and maintain electron neutrality continuity of cell.