Important questions for class 11 Chemistry Chapter 6 Chemical Thermodynamics

important questions class 11 chemistry chapter 6 chemical thermodynamics 1

X - - M n_{2}^{7 +} + Y - O_{7}^{2 -} \to Z - M n^{4 +} + A - O_{2}

X,Y,Z and A are stoichiometric coefficients.
Here, X,Y,Z and A are respectively

20, 12, 56, 42

12, 28, 42, 56

44, 28, 12, 56

None of these

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Chapter 6 - Chemical Thermodynamics