How many ‘mL’ of perhydrol is required to produce sufficient oxygen which can be used to completely convert 2 L of SO2 gas? (BITSAT 2007)

Perhydrol means 30% solution of H2O2. H2O2 decomposes as 2 2 2 2 2H O 2H O O -> Volume strength of 30% H2O2 solution is 100 that means 1 mL of this solution on decomposition gives 100 mL oxygen. 2 2 3 1 SO O SO 2 1L 1/ 2L 1L 2L 1L 2L -> Since 100 mL of oxygen is obtained by = 1 mL of H2O2. 1000 mL of oxygen will be obtained by 2 2 1 1000mLof H O 100 x