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Chemistry
Ethyl alcohol is used as a preservative for chloroform because it :
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Q. Ethyl alcohol is used as a preservative for chloroform because it :
UPSEE
UPSEE 2006
A
prevents aerial oxidation of chloroform
B
prevents decomposition of chloroform
C
decomposes phosgene to $ CO $ and $ Cl_2 $
D
removes phosgene by converting it to ethyl carbonate
Solution:
Ethyl alcohol converts phosgene to ethyl carbonate.
$\underset{\text{Phosgene}}{\ce{COCl_2 }} + 2C_2H_5 OH \ce{->} \underset{\text{Ethyl carbonate}}{\ce{(C2H2O)2CO}} + 2HCl$