Who showed `O_2` Is released from water?

Gas released from cow dung is-

If x' litres of O_(2) is released at STP from one litre of H_(2)O_(2) solution due to decomposition of H_(2)O_(2) then we lable such solution as 'x volume H_(2)O_(2) 2H_(2)O_(2) to 2H_(2)O+O_(2) 30% (w/v) H_(2)O_(2) is called perhydrol. How much volume of O_(2) is released from 100 ml of Phydrol" due to decomposition of H_(2)O_(2) at STP?

CFC’s are released from-

If x' litres of O_(2) is released at STP from one litre of H_(2)O_(2) solution due to decomposition of H_(2)O_(2) then we lable such solution as 'x volume H_(2)O_(2) 2H_(2)O_(2) to 2H_(2)O+O_(2) 30% (w/v) H_(2)O_(2) is called perhydrol. How much volume of 11.2 volumes H_(2)O_(2) is required to completely oxidise one mole of lead sulphite into lead sulphite?

If x' litres of O_(2) is released at STP from one litre of H_(2)O_(2) solution due to decomposition of H_(2)O_(2) then we lable such solution as 'x volume H_(2)O_(2) 2H_(2)O_(2) to 2H_(2)O+O_(2) 30% (w/v) H_(2)O_(2) is called perhydrol. How much volume of 224 volumes H_(2)O_(2) can completely reduce 10 ml of 0.1M KMnO, Into

What gas is released from decay of organic matter lying under water ?

10 litres of 0.1 MAgNO_3 is electrolysed with 2 faradays . '5.6 x' litres of O_2 is released as STP what is x ?

Enzyme released from kidney is

How do you separate O_2 and H_2 from water in your chemical laboratory?