A sample ofsea water contains `5xx10^(-3)g` of dissolved oxygen in 1 kg of the sample. The concentration of `O_(2)` in that sea water sample in ppm is
A. `5xx10^(-4)`
B. `5xx10^(-3)`
C. 5
D. `5xx10^(-1)`

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1 Answers

Correct Answer - C
`"Given",10^(3)g(1kg)"sample contains oxygen"=5xx10^(-3)g`
`:.10^(6)g` sample will contain oxygen
`=(5xx10^(-3)g)/(10^(3)g)xx10^(6)g=5"ppm"`

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