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प्रश्न
Give a reason for the following.
A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
उत्तर
`"H"_2` and `"Cl"_2` differ in densities `"H"_2`= 0.9 g/lit
`"Cl"_2` = 35.5 g/lit
`"H"_2` diffuses faster than `"Cl"_2` and is separated.
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