MNO2 is used in a dry cell why
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Electrolytic manganese dioxide (EMD) is used in zinc–carbon batteries together with zinc chloride and ammonium chloride. EMD is commonly used in zinc manganese dioxide rechargeable alkaline (Zn RAM) cells also. ... The MnO2 dissolves, enters solution as the sulfate, and is deposited on the anode.
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Explanation:it is used as a depolarization to prevent polarization
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