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) rarr 2H_(2)O+O_(2)`
Volume strength of 30% `H_(2)O_(2)` solution is 100 that means 1 mL of this solution on decomposition give means 1 mL of this solution on decomposition give 100 mL oxygen.
`SO_(2)+1/2O_(2) rarr SO_(3)`
`1L" "1/2L" "1L`
`2L" "1L" "2L`
Since, 100 mL of oxygen in obtained by = 1 mL of `H_(2)O_(2)`.
1000 mL of oxygen will be obtained by
`=1/100 times 1000" mL of "H_(2)O_(2)`
`=10" mL of "H_(2)O_(2)`