10 ml of a sample of H2O2 solution liberates 112 ml of O2 gas at STP upon decomposition. Identify the correct statement(s) :
(A) Normality of the above sample of H2O2 is 0.5 N
(B) 15 ml of the same sample of H2O2 solution liberates 224 ml of O2 gas at 1.5 atm and 273°C
(C) Milliequivalents of hypo required for the titration of liberated I2 when 10 ml of the same sample of H2O2 solution is treated with excess of acidified solution of KI are 20
(D) % (w/v) of given sample of H2O2 is 3.4 %