For the redox reaction MnO 4 - + C 2 O 4 2 - + H + → Mn 2 + + CO 2 + H 2 O , the correct coefficients of the reactants for the balanced reaction are respectively MnO 4 - , C 2 O 4 2 - and H + :

Step-by-step solution

For balancing the reaction four steps should be followed in the given order 1 . Balance elements i.e central metal which oxidised or reduced. 2 . Balance oxygen by adding water molecules. 3 . Balance hydrogen by adding H + ion. 4 . Balance charge by adding electrons. Balancing of reaction is given below: 2 KMnO 4 ​ + 5 H 2 C 2 O 4 + 3 H 2 SO 4 ​ → K 2 SO 4 + 2 MnSO 4 ​ + 10 CO 2 ​ + 8 H 2 O MnO 4 − = - 2 C 2 O 4 − 2 = 5 H + = 16 Thus, the correct coefficients of MnO 4 &#872