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Hydrogen Peroxide in aqueous solutoin de...

Hydrogen Peroxide in aqueous solutoin decomposes on warming to give oxygen according to the equation, `2H_(2)O_(2(aq))rarr2H_(2)O_((l))+O_(2(g))`, under conditions where one mole of gas occupies `24dm^(3).100cm^(3)` of .X.M solution `H_(2)O_(2)` produces `3dm^(3)` of `O_(2)`. Thus X is :

A

`2.5`

B

`5.0`

C

`10.0`

D

`30.0`

Text Solution

Verified by Experts

The correct Answer is:
A
Volume strength = `(V_(O_(2)(STP)))/(V_("soln"))`
`n_(O_(2))=(3)/(24)=(1)/(8),V_(O_(2)(STP))=(1)/(8)xx22.4L`
implies Volume strength = `(22.4xx(1)/(8))/(0.1)`
`implies M=(V.S.)/(11.2)=(22.4)/(11.2xx0.1)xx(1)/(8)=2.5M`
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