H2O2 is used as bleaching reagent because on dissociation it gives oxygen H2O2⟶H2O+12O2If "Chachi 420" used H2O2 solution to bleach her hair & she required 2.24 L O2 gas at 1 atm and 273 K. She has a H2O2 solution labelled as '5.6V' then what volume of such solution must she required to bleach her hair ?
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a
200 mL
b
300 mL
c
400 mL
d
500 mL
answer is C.
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Detailed Solution
volume of oxygen liberated=vol.strengh×vol.of H2O2 2.24=5.6×V ; volume of H2O2 =400ml