NEET Exam Model Paper 5

Question : 177 of 180

Marks: +1, -0

Electrolysis of a solution MnSO4 in aqueous sulphuric acid is a method for the preparation of MnO2.Passing a current of 27 A for 24 hours gives 1 kg of MnO2. The current efficiency is (Atomic weight of Manganese is 5