Answer:
d
Step-by-step explanation:
Hydro sulphuric acid in a wet cell acts as an electrolyte. Similarly in a dry cell ammonium chloride paste acts as electrolyte along with zinc anode, carbon rod as cathode in a cylindrical pot. The dry-cell battery stores energy in an immobilized electrolyte paste, which is ammonium chloride in this case. This minimizes the need for water or a wet electrolyte as in wet batteries.