Assuming complete ionization, same moles of which of the following compounds will require the least amount of acidified K M n O 4 for complete oxidation?

Step-by-step solution

M n O 4 - ⟶ M n 2 + ; Change in oxidation no. = 5 In option, i. F e 2 +   ⟶ F e 3 + Change in oxidation no. = 1 ii. F e 2 +   ⟶ F e 3 + Change in oxidation no. = 1 S O 3 2 - ⟶ S O 4 2 - Change in oxidation no. = 2 = 1 + 2 = 3 iii. F e 2 +   ⟶ F e 3 + Change in oxidation no. = 1 C 2 O 4 2 - ⟶ 2 C O 2 Change in oxidation no. = 2 = 1 + 2 = 3 iv. F e 2 +   ⟶ F e 3 + Change in oxidation no. = 1 2 N O 2 - ⟶ 2 N O 3 - Change in oxidation no. = 4 =