How many mL of perhydrol is requried to produce sufficient oxygen which can be used to completely convert 2 L of `SO_(2)` gas of `SO_(3)` gas?

Options

A. 10 mL
B. 5 mL
C. 20 mL
D. 30 mL

Answer

A

Explanation

Perhydrol means `30%` solution of `H_(2)O_(2)`.
`H_(2)O_(2)` decomposes as
`2H_(2)O_(2)to2H_(2)O+O_(2)`
Volume strength of `30%" H"_(2)O_(2)` solution is 100 that means 1 mL of this solution on decomposition gives 100 mL oxygen.
`SO_(2)+(1)/(2)O_(2)toSO_(3)`
`{:(1L,,1//2L,,1L),(2L,,1L,,2L):}`
Since, 100 mL of oxygen is obtained by = 1 mL of `H_(2)O_(2)`.
`:.` 1000 mL of oxygen will be obtained by
`=(1)/(100)xx1000" mL of "H_(2)O_(2)`
`=10" mL of"H_(2)O_(2)`