What is the role of MnO2 in a dry cell ?
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2 is for dry-cell batteries, such as the alkaline battery and the zinc-carbon battery. MnO. 2 is also used as a pigment and as a precursor to other manganese compounds, such as KMnO. 4. It is used as a reagent in organic synthesis, for example, for the oxidation of allylic alcohols.
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Answer:1 ) Mn02 act as a depolariser in a dry cell.
2 ) it produces moisture & get the solution moist that increases ionic mobility & makes the solution much faster.
Explanation:
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