Q.

A)   2KMnO4  →   K2MnO4+MnO2+O2B)   2NaNO3 → 2NaNO2+O2Correct statement regarding the above reactions is

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a

Both A and B are disproportionation reactions

b

Neither A nor B is a disproportionation reaction

c

A is a disproportionation reaction but B is not

d

B is a disproportionation reaction but A is not

answer is B.

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Detailed Solution

A)    2KMn+7O4−2  →   K2Mn+6O4+Mn+4O2+O2O‘Mn’ shows ↓ in OX. State‘O’ shows↑ in OX. StateIt is not a disproprtionationB)   2NaN+5O-23 → 2NaNO2+3+O2O‘N’ Shows ↓ in Ox. State‘O’ Shows ↑in Ox. Stateit is also not a disproportionation reaction.
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