1.

If you have a mixture of CO and CO_(2), how would you know about the relative proportions of the two gases in the given mixture ?

Answer»

Solution :Pass mixture through the `CA(OH)_(2)` solution, `CO_(2)` is absorbed by `Ca(OH)_(2)`.The residual volume will be that of `CO`
`Ca(OH)_(2)+CO_(2)toCaCO_(3)+H_(2)O`
(ii)Pass mixture through `I_(2)O_(5),CO` reduces `I_(2)O_(5)` to `I_(2)`.
`5CO + l_(2)O_(5) to I_(2)+5CO_(2)`
`l_(2)` thus liberated is determined is determined by titration with `Na_(2)S_(2)O_(3)`.
`2Na_(2)S_(2)O_(3)+l_(2)to2Nal+Na_(2)S_(4)O_(6)`
This is the quantitative METHOD of estimation of `CO`.


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