JEE Main Chemistry question
The stoichiometric coefficient in the reaction, nH_2C_2O_4+2KMnO_4 \to nCO_2+K_2O+MnO+H_2O, is .
Answer: 5
Solution
(Mn: in MnO) gains 5 electrons each; 2 mole gain 10 electrons. Oxalic acid loses
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