VITEEE 2009 Solved Paper

30% solution of H2O2 is known as perhydrol.
H2O2 decomposes as
2H2O2⟶2H2O+O2
Volume strength of 30% H2O2 solution is 100 i.e., 1 ml. of this solution on decomposition gives 100 ml. oxygen.

SO2

1L

+

1

2

O2

1 2 L

⟶

SO3

1L

2L‌‌‌‌‌‌‌1L‌‌‌‌‌‌‌‌‌2L
Since, 100 ml of oxygen is obtained by = 1 ml of H2O2
∴ 1000 ml of oxygen will be obtained by =

1

100

×1000 ml of H2O2
= 10 ml of H2O2