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| 1. |
Anhydrides of sulphurous acid and carbonic acid produce milkiness when passed through a solution of the same substance 'X' . When chlorine gas is made to react with the same solution 'X'. It gives a compound 'Y' having disinfectant action. Identify 'Y' and justify its use for the above purpose. |
| Answer» SOLUTION :ANHYDRIDES of sulphurous acid and carbonic acid are `SO_2 and CO_2`respectively. They produce milkiness on passing thorugh a solution of `Ca(OH)_2`. When `Cl_2` gas is made to REACT with `Ca(OH)_2,CaOCl_2` (bleaching powder) is formed. Bleaching power on dissociation in water gives `Ca(OH)_2, HCI` and HOCI.Hypochlorous acid being unstable decmposes of HCI and nascent oxygen which is RESPONSIBLE for bleaching action : | |