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How will you prepare the following ? Giv...

How will you prepare the following ? Give chemical equations also.
(i) Chlorine from HCl (ii) Phosphoric acid from `PCl_(5)`
(iii) Bleaching powder from `Cl_(2)`

Text Solution

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(i) By heating `MnO_(2)` with conc. HCl
`MnO_(2)+4HCl overset("heat") to MnCl_(2)+H_(2)O+Cl_(2)`
(ii) By dissovling `PCl_(5)` in excess of water
`PCl_(5)+4H_(2)Oto H_(3)PO_(4)+5HCl`
(iii) By passing `Cl_(2)` gas through slaked lime.
`Ca(OH)_(2)+Cl_(2) to underset ("Bleaching powder")(CaOCl_(2))+H_(2)O`
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