যখন একটি বৈদ্যুতিক প্রবাহ অম্লীয় জলের মধ্য দিয়ে প্রবাহিত হয়, তখন `NTP` এ `H_(2)` গ্যাসের `112ml` হয়

H_(2)O_(2) acts as both oxidising and reducing agent. As oxidising agent, its product is H_(2)O but as redusing agent, its product is O_(2) . Volume strength has great significance for chemical reactions. The strength of '10 V means 1 volume (or litre) of H_(2)O_(2) on decomposition (H_(2)O_(2) rarr H_(2)O+1/2 O_(2)) gives 10 volumes (or litre) of oxygen at NTP. 15 g Ba(MnO_(4))_(2) sample containing inert impurity is completely reacting with 100 mL of '11.2 V' H_(2)O_(2) , then what will be the % purity of Ba(MnO_(4))_(2) in the sample: (Atomic mass: Ba=137, Mn=55)

When an electric current is passed through acidified water, 112ml of H_(2) gas at NTP is collected at the cathode is 965 seconds. The current passed in amperes is