Statement I ; Decomposition sodium nitrate is a redox reaction.Statement II ; Formation of calcium carbonate from calcium oxide and carbon dioxide is a redox reaction.

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Both statements I and II are correct

Statement I is correct and statement II is incorrect

Statement I is incorrect and statement II is correct

Both statements I and II are incorrect

answer is B.

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Detailed Solution

Ca+2O+C+4O2→Ca+2C+4O3....not a redox reaction ; 2NaN+5O3→2 NaN+3O2+O20.........a redox reaction ;

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