Chloroform is kept with a little ethyle alcohol in dark coloured bottl

1.	Chloroform is kept with a little ethyle alcohol in dark coloured bottle, why?
Answer» Solution :(i) Chloroform is slowly oxidised by air in the presence of light to an EXTREMELY posionous gas, carboxyl chloride (phosgene), it is THEREFORE stored in closed dark coloured bottles completely filled so that air is kept out. (ii) With the USE of 1% ethanol we can stabilise chloroform, ethanol can covert the poisonous `COCl_(2)` gas into non poisonous diethyl carbonate. `COCl_(2) + 2C_(2)H_(5)OH rarr CO(OC_(2) H_(5))_(2) + 2HCl`

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