1.

A litre of public water contains 5 mg of chlorine. The concentration of chlorine in ppm is

Answer»

`5xx10^(-4)`
5
50
0.5

Solution :`10^(3)` parts CONTAIN chlorine `=5xx10^(-3)g`
`10^(6)` parts contain chlorine `=(5xx10^(-3))/(10^(3))xx10^(6)`
`=5` PPM


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