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20 volume H(2)O(2) solution has a streng...

20 volume `H_(2)O_(2)` solution has a strength of about

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The correct Answer is:
6
`:'` 22.4 L `O_(2)` at NTP obtained by 68 g of `H_(2)O_(2)`
`:. 1L O_(2)` at NTP obtained by `68/22.4 g` of `H_(2)O_2`
`:. ` 20L `O_(2)` at NTP obtained by
`68/22.4 xx20` g of `H_(2)O_(2)`=60.71 g of `H_(2)O_(2)`
`:. 1000 ml O_(2)` at NTP obtained by 60.71 g of `H_(2)O_(2)`
`:. 100 ml O_(2)` at NTP obtained by `60.71/1000xx100=6.071 %`
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