Question

A small amount of ethyl alcohol is usually added to chloroform bottles. why?​

Answer 1

chloroform is an unstable and is combined with variety of stabilizers to enhance their product life.Sigma-ethanol and amylene stabilized chloroform.and this is used to prevent it from turning into a dangerous gas known as phosgene.

the equation is

Chloroform oxidises  in presence of air and forms poisonous phosgene(COCl₂).

CHCl₃ +  1/2 O₂———>COCl₂ + HCl.  

To prevent the formation of phosgene, ethanol is used.  

COCl₂+ C₂H₅OH————> (C₂H₅)₂CO₃+ HCl

i hope this helps u

Answer 2

When a little amount of choroform is exposed to oxygen it gets converted into phosgene (COCl2) which is a poisonous gas

Hence a small amount of ethyl alcohol is added to it so that it gets converted into ethyl carbonate

I hope this helps